# Exchange rate per US dollar in Sri Lanka

Exchange rate per US dollar in Sri Lanka was 329.4748 currency units per USD in September 2026. Source: Board of Governors of the Federal Reserve System.

- Indicator id: `exchange_rate_per_usd`
- Place id: `lk`
- Unit: currency units per USD
- Definition: Units of the currency issued by the place that buy 1 US dollar: the monthly average of the daily noon buying rates in New York certified by the Federal Reserve Bank of New York (Federal Reserve G.5 and H.10). Japan carries yen per dollar, the euro area euros per dollar.
- Note: A higher value means a weaker currency against the dollar. The Federal Reserve quotes the euro, the pound sterling and the Australian and New Zealand dollars the other way round, in US dollars per unit (1.1505 dollars per euro in September 2026); for those four the value here is the reciprocal of the published monthly average (0.869187 euros per dollar), stored with the published figure as its input. The reciprocal of an average can differ slightly from an average of daily reciprocals. Rates belong to the country that issues the currency; currencies shared by several countries are not included.
- Source: Board of Governors of the Federal Reserve System, G.5/H.10 Foreign Exchange Rates: monthly average of daily noon buying rates in New York, units of each currency per US dollar (RXI_N.M.<country> and, inverted, RXI$US_N.M.<country>) (https://www.federalreserve.gov/releases/g5/current/)
- Publisher page: https://invokely.ai/en/publishers/federal-reserve-board
- Retrieved: 2026-10-22
- License: Public domain unless otherwise indicated (Federal Reserve Board website policy)
- Citation: Board of Governors of the Federal Reserve System. G.5/H.10 Foreign Exchange Rates: monthly average of daily noon buying rates in New York, units of each currency per US dollar (RXI_N.M.<country> and, inverted, RXI$US_N.M.<country>). https://www.federalreserve.gov/releases/g5/current/. Retrieved 2026-10-22.
- Web page: https://invokely.ai/en/exchange-rate-per-us-dollar/sri-lanka
- API: https://invokely.ai/api/v1/series?indicator=exchange_rate_per_usd&place=lk

| Period | currency units per USD |
|---|---:|
| 2026-09 | 329.4748 |
| 2026-08 | 331.9548 |
| 2026-07 | 335.7445 |
| 2026-06 | 334.1014 |
| 2026-05 | 325.67 |
| 2026-04 | 316.2377 |
| 2026-03 | 311.7786 |
| 2026-02 | 309.2937 |
| 2026-01 | 309.4585 |
| 2025-12 | 309.1045 |
| 2025-11 | 306.1411 |
| 2025-10 | 303.0636 |
| 2025-09 | 302.0905 |
| 2025-08 | 301.3124 |
| 2025-07 | 301.0836 |
| 2025-06 | 299.707 |
| 2025-05 | 299.249 |
| 2025-04 | 298.4291 |
| 2025-03 | 295.851 |
| 2025-02 | 296.5784 |
| 2025-01 | 296.0967 |
| 2024-12 | 291.5843 |
| 2024-11 | 291.7826 |
| 2024-10 | 293.2764 |
| 2024-09 | 300.8865 |
| 2024-08 | 300.2305 |
| 2024-07 | 303.2373 |
| 2024-06 | 303.8889 |
| 2024-05 | 299.5773 |
| 2024-04 | 298.9677 |
| 2024-03 | 304.8286 |
| 2024-02 | 311.862 |
| 2024-01 | 320.32 |
| 2023-12 | 326.211 |
| 2023-11 | 327.8855 |
| 2023-10 | 324.8257 |
| 2023-09 | 322.4535 |
| 2023-08 | 320.4726 |
| 2023-07 | 319.0375 |
| 2023-06 | 301.6281 |
| 2023-05 | 309.42 |
| 2023-04 | 319.249 |
| 2023-03 | 327.4417 |
| 2023-02 | 362.6511 |
| 2023-01 | 363.945 |
| 2022-12 | 363.1862 |
| 2022-11 | 362.6885 |
| 2022-10 | 361.8925 |
| 2022-09 | 358.9229 |
| 2022-08 | 356.4891 |
| 2022-07 | 357.134 |
| 2022-06 | 356.619 |
| 2022-05 | 356.2948 |
| 2022-04 | 320.3267 |
| 2022-03 | 252.6383 |
| 2022-02 | 202.0063 |
| 2022-01 | 201.842 |
| 2021-12 | 201.9533 |
| 2021-11 | 201.214 |
| 2021-10 | 200.083 |
| 2021-09 | 199.2033 |
| 2021-08 | 199.1268 |
| 2021-07 | 198.88 |
| 2021-06 | 197.8595 |
| 2021-05 | 196.777 |
| 2021-04 | 196.6659 |
| 2021-03 | 196.8809 |
| 2021-02 | 194.2947 |
| 2021-01 | 190.7628 |
| 2020-12 | 186.6329 |
| 2020-11 | 184.8094 |
| 2020-10 | 184.3767 |
| 2020-09 | 184.9519 |
| 2020-08 | 184.8529 |
| 2020-07 | 185.7377 |
| 2020-06 | 185.8705 |
| 2020-05 | 187.5425 |
| 2020-04 | 191.3536 |
| 2020-03 | 184.4095 |
| 2020-02 | 181.5016 |
| 2020-01 | 181.3219 |
| 2019-12 | 181.1976 |
| 2019-11 | 180.3111 |
| 2019-10 | 181.3155 |
| 2019-09 | 180.7975 |
| 2019-08 | 177.9386 |
| 2019-07 | 175.8832 |
| 2019-06 | 176.4635 |
| 2019-05 | 176.15 |
| 2019-04 | 174.6432 |
| 2019-03 | 178.0952 |
| 2019-02 | 178.3944 |
| 2019-01 | 181.6025 |
| 2018-12 | 180.0794 |
| 2018-11 | 176.7275 |
| 2018-10 | 171.3614 |
| 2018-09 | 165.2237 |
| 2018-08 | 160.3217 |
| 2018-07 | 159.3548 |
| 2018-06 | 158.9619 |
| 2018-05 | 157.7527 |
| 2018-04 | 156.1857 |
| 2018-03 | 155.6386 |
| 2018-02 | 154.7737 |
| 2018-01 | 153.7452 |
| 2017-12 | 153.1085 |
| 2017-11 | 153.5925 |
| 2017-10 | 153.4905 |
| 2017-09 | 152.8125 |
| 2017-08 | 153.0978 |
| 2017-07 | 153.5875 |
| 2017-06 | 152.8082 |
| 2017-05 | 152.3909 |
| 2017-04 | 151.862 |
| 2017-03 | 151.5048 |
| 2017-02 | 150.8721 |
| 2017-01 | 149.8342 |
| 2016-12 | 148.8152 |
| 2016-11 | 147.81 |
| 2016-10 | 146.76 |
| 2016-09 | 145.4581 |
| 2016-08 | 145.2035 |
| 2016-07 | 145.401 |
| 2016-06 | 145.8609 |
| 2016-05 | 145.9081 |
| 2016-04 | 145.2019 |
| 2016-03 | 145.1335 |
| 2016-02 | 143.639 |
| 2016-01 | 143.5505 |
| 2015-12 | 143.335 |
| 2015-11 | 141.9637 |
| 2015-10 | 140.851 |
| 2015-09 | 139.2329 |
| 2015-08 | 133.8519 |
| 2015-07 | 133.6818 |
| 2015-06 | 133.9382 |
| 2015-05 | 133.46 |
| 2015-04 | 132.9227 |
| 2015-03 | 132.95 |
| 2015-02 | 132.7221 |
| 2015-01 | 131.6075 |
| 2014-12 | 131.0786 |
| 2014-11 | 130.9278 |
| 2014-10 | 130.5618 |
| 2014-09 | 130.2562 |
| 2014-08 | 130.1748 |
| 2014-07 | 130.2123 |
| 2014-06 | 130.2714 |
| 2014-05 | 130.3833 |
| 2014-04 | 130.5936 |
| 2014-03 | 130.5857 |
| 2014-02 | 130.7968 |
| 2014-01 | 130.6857 |
| 2013-12 | 130.7643 |
| 2013-11 | 131.0895 |
| 2013-10 | 130.9955 |
| 2013-09 | 132.3465 |
| 2013-08 | 131.9682 |
| 2013-07 | 131.1345 |
| 2013-06 | 127.9125 |
| 2013-05 | 126.2432 |
| 2013-04 | 125.9673 |
| 2013-03 | 126.7005 |
| 2013-02 | 126.7342 |
| 2013-01 | 126.72 |
| 2012-12 | 128.036 |
| 2012-11 | 130.234 |
| 2012-10 | 129.0859 |
| 2012-09 | 131.5105 |
| 2012-08 | 131.9896 |
| 2012-07 | 132.4848 |
| 2012-06 | 131.8519 |
| 2012-05 | 129.0045 |
| 2012-04 | 128.4248 |
| 2012-03 | 125.6605 |
| 2012-02 | 117.281 |
| 2012-01 | 113.8195 |
| 2011-12 | 113.8067 |
| 2011-11 | 111.2205 |
| 2011-10 | 110.0875 |
| 2011-09 | 110.0529 |
| 2011-08 | 109.7139 |
| 2011-07 | 109.457 |
| 2011-06 | 109.5391 |
| 2011-05 | 109.7629 |
| 2011-04 | 110.2129 |
| 2011-03 | 110.3022 |
| 2011-02 | 110.8074 |
| 2011-01 | 110.82 |
| 2010-12 | 111.0081 |
| 2010-11 | 111.5155 |
| 2010-10 | 111.667 |
| 2010-09 | 112.3029 |
| 2010-08 | 112.3968 |
| 2010-07 | 112.9571 |
| 2010-06 | 113.5605 |
| 2010-05 | 113.7025 |
| 2010-04 | 113.8286 |
| 2010-03 | 114.1039 |
| 2010-02 | 114.5079 |
| 2010-01 | 114.3589 |
| 2009-12 | 114.2836 |
| 2009-11 | 114.4853 |
| 2009-10 | 114.7838 |
| 2009-09 | 114.7667 |
| 2009-08 | 114.7148 |
| 2009-07 | 114.8002 |
| 2009-06 | 114.8105 |
| 2009-05 | 116.672 |
| 2009-04 | 117.3068 |
| 2009-03 | 114.2836 |
| 2009-02 | 114.1026 |
| 2009-01 | 113.7685 |
| 2008-12 | 111.4464 |
| 2008-11 | 109.9594 |
| 2008-10 | 108.1661 |
| 2008-09 | 107.8233 |
| 2008-08 | 107.7181 |
| 2008-07 | 107.6086 |
| 2008-06 | 107.7633 |
| 2008-05 | 107.7705 |
| 2008-04 | 107.7791 |
| 2008-03 | 107.6838 |
| 2008-02 | 107.827 |
| 2008-01 | 108.1557 |
| 2007-12 | 108.891 |
| 2007-11 | 110.4181 |
| 2007-10 | 112.8583 |
| 2007-09 | 113.3415 |
| 2007-08 | 112.1839 |
| 2007-07 | 111.6724 |
| 2007-06 | 110.9662 |
| 2007-05 | 110.7995 |
| 2007-04 | 109.3595 |
| 2007-03 | 109.2941 |
| 2007-02 | 108.6842 |
| 2007-01 | 108.5219 |
| 2006-12 | 107.7905 |
| 2006-11 | 107.72 |
| 2006-10 | 105.7181 |
| 2006-09 | 102.595 |
| 2006-08 | 103.6691 |
| 2006-07 | 103.9565 |
| 2006-06 | 103.5245 |
| 2006-05 | 102.8382 |
| 2006-04 | 102.6345 |
| 2006-03 | 102.6478 |
| 2006-02 | 102.1942 |
| 2006-01 | 102.016 |
| 2005-12 | 101.9767 |
| 2005-11 | 101.7995 |
| 2005-10 | 101.4845 |
| 2005-09 | 101.3324 |
| 2005-08 | 100.7383 |
| 2005-07 | 100.283 |
| 2005-06 | 99.9455 |
| 2005-05 | 99.791 |
| 2005-04 | 99.671 |
| 2005-03 | 99.3896 |
| 2005-02 | 99.2726 |
| 2005-01 | 98.9288 |
| 2004-12 | 104.7483 |
| 2004-11 | 104.632 |
| 2004-10 | 103.8845 |
| 2004-09 | 103.3257 |
| 2004-08 | 103.4364 |
| 2004-07 | 102.9981 |
| 2004-06 | 100.93 |
| 2004-05 | 98.9288 |
| 2004-04 | 98.1323 |
| 2004-03 | 97.5222 |
| 2004-02 | 98.5074 |
| 2004-01 | 98.009 |
| 2003-12 | 96.4132 |
| 2003-11 | 96.0106 |
| 2003-10 | 94.5595 |
| 2003-09 | 95.2843 |
| 2003-08 | 96.9748 |
| 2003-07 | 97.1527 |
| 2003-06 | 97.2362 |
| 2003-05 | 97.2305 |
| 2003-04 | 97.0036 |
| 2003-03 | 96.9433 |
| 2003-02 | 96.8795 |
| 2003-01 | 96.8133 |
| 2002-12 | 96.7048 |
| 2002-11 | 96.4263 |
| 2002-10 | 96.4023 |
| 2002-09 | 96.207 |
| 2002-08 | 96.2805 |
| 2002-07 | 96.2655 |
| 2002-06 | 96.4075 |
| 2002-05 | 96.3182 |
| 2002-04 | 96.0295 |
| 2002-03 | 94.9033 |
| 2002-02 | 93.65 |
| 2002-01 | 93.4733 |
| 2001-12 | 93.194 |
| 2001-11 | 92.67 |
| 2001-10 | 90.9536 |
| 2001-09 | 90.1572 |
| 2001-08 | 89.9935 |
| 2001-07 | 90.3143 |
| 2001-06 | 90.3714 |
| 2001-05 | 90.8477 |
| 2001-04 | 88.2052 |
| 2001-03 | 85.7295 |
| 2001-02 | 87.1358 |
| 2001-01 | 85.8333 |
| 2000-12 | 82.03 |
| 2000-11 | 80.3805 |
| 2000-10 | 79.291 |
| 2000-09 | 78.731 |
| 2000-08 | 78.2826 |
| 2000-07 | 78.8515 |
| 2000-06 | 76.7359 |
| 2000-05 | 74.8668 |
| 2000-04 | 74.1225 |
| 2000-03 | 73.8096 |
| 2000-02 | 73.552 |
| 2000-01 | 73.14 |
| 1999-12 | 72.0178 |
| 1999-11 | 72.04 |
| 1999-10 | 71.747 |
| 1999-09 | 71.9419 |
| 1999-08 | 71.8676 |
| 1999-07 | 71.9124 |
| 1999-06 | 71.2114 |
| 1999-05 | 70.581 |
| 1999-04 | 69.5877 |
| 1999-03 | 69.5696 |
| 1999-02 | 69.0695 |
| 1999-01 | 68.6295 |
| 1998-12 | 68.1173 |
| 1998-11 | 67.5784 |
| 1998-10 | 66.3452 |
| 1998-09 | 66.26 |
| 1998-08 | 66.6424 |
| 1998-07 | 65.9084 |
| 1998-06 | 65.1495 |
| 1998-05 | 64.2605 |
| 1998-04 | 62.9032 |
| 1998-03 | 62.0834 |
| 1998-02 | 62.3632 |
| 1998-01 | 62.2805 |
| 1997-12 | 61.5914 |
| 1997-11 | 60.1322 |
| 1997-10 | 59.7232 |
| 1997-09 | 59.7129 |
| 1997-08 | 59.1886 |
| 1997-07 | 58.7323 |
| 1997-06 | 58.531 |
| 1997-05 | 58.8619 |
| 1997-04 | 58.8255 |
| 1997-03 | 57.8729 |
| 1997-02 | 57.7721 |
| 1997-01 | 57.2776 |
| 1996-12 | 56.7295 |
| 1996-11 | 56.9874 |
| 1996-10 | 57.0155 |
| 1996-09 | 56.05 |
| 1996-08 | 55.6027 |
| 1996-07 | 55.2932 |
| 1996-06 | 55.5285 |
| 1996-05 | 54.8677 |
| 1996-04 | 54.1632 |
| 1996-03 | 53.7476 |
| 1996-02 | 53.716 |
| 1996-01 | 53.8738 |
| 1995-12 | 53.8075 |
| 1995-11 | 53.1986 |
| 1995-10 | 52.5386 |
| 1995-09 | 52.5465 |
| 1995-08 | 51.2265 |
| 1995-07 | 50.8985 |
| 1995-06 | 50.21 |
| 1995-05 | 49.5582 |
| 1995-04 | 49.3705 |
| 1995-03 | 49.627 |
| 1995-02 | 49.8953 |
| 1995-01 | 49.87 |
| 1994-12 | 49.5314 |
| 1994-11 | 49.1628 |
| 1994-10 | 49.112 |
| 1994-09 | 49.26 |
| 1994-08 | 49.2413 |
| 1994-07 | 49.01 |
| 1994-06 | 49.2323 |
| 1994-05 | 49.0667 |
| 1994-04 | 48.9251 |
| 1994-03 | 48.9308 |
| 1994-02 | 49.1129 |
| 1994-01 | 49.4595 |
| 1993-12 | 49.3222 |
| 1993-11 | 49.1873 |
| 1993-10 | 48.9538 |
| 1993-09 | 48.8538 |
| 1993-08 | 48.8056 |
| 1993-07 | 48.643 |
| 1993-06 | 48.0733 |
| 1993-05 | 47.965 |
| 1993-04 | 47.7115 |
| 1993-03 | 47.0685 |
| 1993-02 | 46.3507 |
| 1993-01 | 46.3071 |
| 1992-12 | 45.0463 |
| 1992-11 | 44.4044 |
| 1992-10 | 44.2758 |
| 1992-09 | 44.1591 |
| 1992-08 | 44.05 |
| 1992-07 | 44.014 |
| 1992-06 | 43.9413 |
| 1992-05 | 43.445 |
| 1992-04 | 43.2308 |
| 1992-03 | 42.7442 |
| 1992-02 | 42.8788 |
| 1992-01 | 42.6653 |
| 1991-12 | 42.5225 |
| 1991-11 | 42.3739 |
| 1991-10 | 42.1789 |
| 1991-09 | 41.935 |
| 1991-08 | 41.723 |
| 1991-07 | 41.2125 |
| 1991-06 | 41.2114 |
| 1991-05 | 40.9875 |
| 1991-04 | 40.8363 |
| 1991-03 | 40.7499 |
| 1991-02 | 40.5983 |
| 1991-01 | 40.3004 |
| 1990-12 | 40.2435 |
| 1990-11 | 40.355 |
| 1990-10 | 40.2853 |
| 1990-09 | 39.9525 |
| 1990-08 | 40.0066 |
| 1990-07 | 40.0175 |
| 1990-06 | 40.0175 |
| 1990-05 | 40.0225 |
| 1990-04 | 40.0175 |
| 1990-03 | 40.0175 |
| 1990-02 | 40.0175 |
| 1990-01 | 40.0175 |
| 1989-12 | 40.0175 |
| 1989-11 | 40.0166 |
| 1989-10 | 40.0175 |
| 1989-09 | 39.5719 |
| 1989-08 | 36.0494 |
| 1989-07 | 34.7636 |
| 1989-06 | 34.4295 |
| 1989-05 | 34.1448 |
| 1989-04 | 34.021 |
| 1989-03 | 33.4165 |
| 1989-02 | 33.1154 |
| 1989-01 | 33.1323 |
| 1988-12 | 33.0162 |
| 1988-11 | 32.9887 |
| 1988-10 | 32.9891 |
| 1988-09 | 32.9536 |
| 1988-08 | 32.5029 |
| 1988-07 | 31.8325 |
| 1988-06 | 31.1327 |
| 1988-05 | 30.9926 |
| 1988-04 | 30.9393 |
| 1988-03 | 30.8924 |
| 1988-02 | 30.8589 |
| 1988-01 | 30.8246 |
| 1987-12 | 30.6442 |
| 1987-11 | 30.5188 |
| 1987-10 | 30.3471 |
| 1987-09 | 29.9022 |
| 1987-08 | 29.643 |
| 1987-07 | 29.4049 |
| 1987-06 | 29.171 |
| 1987-05 | 28.9883 |
| 1987-04 | 28.9048 |
| 1987-03 | 28.8234 |
| 1987-02 | 28.6624 |
| 1987-01 | 28.5783 |
| 1986-12 | 28.5317 |
| 1986-11 | 28.4711 |
| 1986-10 | 28.4072 |
| 1986-09 | 28.2971 |
| 1986-08 | 28.1867 |
| 1986-07 | 28.0648 |
| 1986-06 | 27.9549 |
| 1986-05 | 27.9318 |
| 1986-04 | 27.7911 |
| 1986-03 | 27.6235 |
| 1986-02 | 27.5962 |
| 1986-01 | 27.5202 |
| 1985-12 | 27.4205 |
| 1985-11 | 27.4487 |
| 1985-10 | 27.4213 |
| 1985-09 | 27.43 |
| 1985-08 | 27.3767 |
| 1985-07 | 27.3273 |
| 1985-06 | 27.433 |
| 1985-05 | 27.4046 |
| 1985-04 | 27.1134 |
| 1985-03 | 26.8358 |
| 1985-02 | 26.6047 |
| 1985-01 | 26.3924 |
| 1984-12 | 26.2132 |
| 1984-11 | 26.0747 |
| 1984-10 | 25.9061 |
| 1984-09 | 25.6046 |
| 1984-08 | 25.2848 |
| 1984-07 | 25.2229 |
| 1984-06 | 25.1762 |
| 1984-05 | 25.1614 |
| 1984-04 | 25.1333 |
| 1984-03 | 25.1773 |
| 1984-02 | 25.2705 |
| 1984-01 | 25.181 |
| 1983-12 | 24.7671 |
| 1983-11 | 24.5716 |
| 1983-10 | 24.4104 |
| 1983-09 | 24.3971 |
| 1983-08 | 24.257 |
| 1983-07 | 24.0825 |
| 1983-06 | 23.0505 |
| 1983-05 | 22.97 |
| 1983-04 | 22.9714 |
| 1983-03 | 22.9817 |
| 1983-02 | 22.3555 |
| 1983-01 | 21.3776 |
| 1982-12 | 21.1657 |
| 1982-11 | 21.0089 |
| 1982-10 | 20.898 |
| 1982-09 | 20.9181 |
| 1982-08 | 20.8955 |
| 1982-07 | 20.8952 |
| 1982-06 | 20.75 |
| 1982-05 | 20.365 |
| 1982-04 | 20.575 |
| 1982-03 | 20.7 |
| 1982-02 | 20.6111 |
| 1982-01 | 20.2285 |
| 1981-12 | 20.2595 |
| 1981-11 | 20.8256 |
| 1981-10 | 20.6736 |
| 1981-09 | 19.9864 |
| 1981-08 | 19.2613 |
| 1981-07 | 18.6952 |
| 1981-06 | 18.5291 |
| 1981-05 | 18.37 |
| 1981-04 | 18.4614 |
| 1981-03 | 18.01 |
| 1981-02 | 17.865 |
| 1981-01 | 16.8029 |
| 1980-12 | 17.4323 |
| 1980-11 | 17.2 |
| 1980-10 | 16.7641 |
| 1980-09 | 15.8281 |
| 1980-08 | 15.881 |
| 1980-07 | 15.8048 |
| 1980-06 | 16.0811 |
| 1980-05 | 16.1551 |
| 1980-04 | 16.2603 |
| 1980-03 | 15.6036 |
| 1980-02 | 15.54 |
| 1980-01 | 15.5466 |
| 1979-12 | 15.5521 |
| 1979-11 | 15.6123 |
| 1979-10 | 15.625 |
| 1979-09 | 15.5945 |
| 1979-08 | 15.585 |
| 1979-07 | 15.6796 |
| 1979-06 | 15.6105 |
| 1979-05 | 15.567 |
| 1979-04 | 15.5148 |
| 1979-03 | 15.4817 |
| 1979-02 | 15.5186 |
| 1979-01 | 15.5065 |
| 1978-12 | 15.4607 |
| 1978-11 | 15.4638 |
| 1978-10 | 15.6846 |
| 1978-09 | 15.6607 |
| 1978-08 | 15.6442 |
| 1978-07 | 15.8136 |
| 1978-06 | 15.9091 |
| 1978-05 | 15.8879 |
| 1978-04 | 15.3966 |
| 1978-03 | 15.3846 |
| 1978-02 | 15.6239 |
| 1978-01 | 16.086 |
| 1977-12 | 16.129 |
| 1977-11 | 12.5619 |
| 1977-10 | 8.6074 |
| 1977-09 | 8.1799 |
| 1977-08 | 7.2884 |
| 1977-07 | 7.2993 |
| 1977-06 | 7.319 |
| 1977-05 | 7.2993 |
| 1977-04 | 7.3121 |
| 1977-03 | 7.8605 |
| 1977-02 | 8.7396 |
| 1977-01 | 8.7555 |
| 1976-12 | 8.8929 |
| 1976-11 | 8.7117 |
| 1976-10 | 8.7318 |