|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1980 | 315532800000 | 1312.4 |
|
| 1981 | 347155200000 | 867.4 |
|
| 1982 | 378691200000 | 1715.9 |
1298.6 |
| 1983 | 410227200000 | 2213.4 |
1598.9 |
| 1984 | 441763200000 | 1527.7 |
1819.0 |
| 1985 | 473385600000 | 849.8 |
1530.3 |
| 1986 | 504921600000 | 1307.0 |
1228.2 |
| 1987 | 536457600000 | 836.7 |
997.8 |
| 1988 | 567993600000 | 960.5 |
1034.8 |
| 1989 | 599616000000 | 965.5 |
920.9 |
| 1990 | 631152000000 | 683.0 |
869.6 |
| 1991 | 662688000000 | 494.2 |
714.2 |
| 1992 | 694224000000 | 927.0 |
701.4 |
| 1993 | 725846400000 | 1561.8 |
994.3 |
| 1994 | 757382400000 | 549.7 |
1012.8 |
| 1995 | 788918400000 | 1782.9 |
1298.2 |
| 1996 | 820454400000 | 1367.7 |
1233.4 |
| 1997 | 852076800000 | 1056.7 |
1402.4 |
| 1998 | 883612800000 | 2205.0 |
1543.1 |
| 1999 | 915148800000 | 1429.8 |
1563.8 |
| 2000 | 946684800000 | 1643.3 |
1759.4 |
| 2001 | 978307200000 | 788.1 |
1287.1 |
| 2002 | 1009843200000 | 1186.4 |
1205.9 |
| 2003 | 1041379200000 | 1699.7 |
1224.7 |
| 2004 | 1072915200000 | 1368.0 |
1418.0 |
| 2005 | 1104537600000 | 1414.5 |
1494.1 |
| 2006 | 1136073600000 | 1865.7 |
1549.4 |
| 2007 | 1167609600000 | 718.5 |
1332.9 |
| 2008 | 1199145600000 | 837.7 |
1140.6 |
| 2009 | 1230768000000 | 801.6 |
785.9 |
| 2010 | 1262304000000 | 1482.2 |
1040.5 |
| 2011 | 1293840000000 | 1783.7 |
1355.8 |
| 2012 | 1325376000000 | 971.1 |
1412.3 |
| 2013 | 1356998400000 | 739.1 |
1164.6 |
| 2014 | 1388534400000 | 368.4 |
692.8 |
| 2015 | 1420070400000 | 712.2 |
606.5 |
| 2016 | 1451606400000 | 1285.4 |
788.7 |
| 2017 | 1483228800000 | 1918.0 |
1305.2 |
| 2018 | 1514764800000 | 544.6 |
1249.3 |
| 2019 | 1546300800000 | 1546.7 |
1336.4 |
| 2020 | 1577836800000 | 460.8 |
850.7 |
| 2021 | 1609459200000 | 325.7 |
777.7 |
| 2022 | 1640995200000 | 489.7 |
425.4 |
| 2023 | 1672531200000 | 1561.9 |
792.4 |
| 2024 | 1704067200000 | 1546.8 |
1199.5 |
| 2025 | 1735689600000 | 1627.1 |
1578.6 |
| 2026 | 1767225600000 |
1090.2 |
1421.4 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1980 | 315532800000 | 551.6 |
|
| 1981 | 347155200000 | 340.0 |
|
| 1982 | 378691200000 | 775.2 |
555.6 |
| 1983 | 410227200000 | 1111.1 |
742.1 |
| 1984 | 441763200000 | 584.9 |
823.7 |
| 1985 | 473385600000 | 401.7 |
699.2 |
| 1986 | 504921600000 | 503.6 |
496.7 |
| 1987 | 536457600000 | 422.7 |
442.7 |
| 1988 | 567993600000 | 421.1 |
449.1 |
| 1989 | 599616000000 | 480.0 |
441.3 |
| 1990 | 631152000000 | 323.9 |
408.3 |
| 1991 | 662688000000 | 306.8 |
370.2 |
| 1992 | 694224000000 | 510.9 |
380.5 |
| 1993 | 725846400000 | 905.5 |
574.4 |
| 1994 | 757382400000 | 265.5 |
560.7 |
| 1995 | 788918400000 | 1000.7 |
723.9 |
| 1996 | 820454400000 | 607.8 |
624.7 |
| 1997 | 852076800000 | 318.5 |
642.3 |
| 1998 | 883612800000 | 1224.1 |
716.8 |
| 1999 | 915148800000 | 789.3 |
777.3 |
| 2000 | 946684800000 | 847.3 |
953.6 |
| 2001 | 978307200000 | 412.8 |
683.1 |
| 2002 | 1009843200000 | 535.9 |
598.7 |
| 2003 | 1041379200000 | 888.6 |
612.4 |
| 2004 | 1072915200000 | 610.7 |
678.4 |
| 2005 | 1104537600000 | 861.3 |
786.9 |
| 2006 | 1136073600000 | 1012.9 |
828.3 |
| 2007 | 1167609600000 | 252.8 |
709.0 |
| 2008 | 1199145600000 | 486.7 |
584.1 |
| 2009 | 1230768000000 | 415.2 |
384.9 |
| 2010 | 1262304000000 | 935.3 |
612.4 |
| 2011 | 1293840000000 | 996.2 |
782.2 |
| 2012 | 1325376000000 | 633.7 |
855.1 |
| 2013 | 1356998400000 | 281.6 |
637.2 |
| 2014 | 1388534400000 | 128.1 |
347.8 |
| 2015 | 1420070400000 | 121.8 |
177.2 |
| 2016 | 1451606400000 | 513.8 |
254.6 |
| 2017 | 1483228800000 | 760.6 |
465.4 |
| 2018 | 1514764800000 | 258.7 |
511.0 |
| 2019 | 1546300800000 | 926.5 |
648.6 |
| 2020 | 1577836800000 | 229.1 |
471.5 |
| 2021 | 1609459200000 | 157.4 |
437.7 |
| 2022 | 1640995200000 | 170.6 |
185.7 |
| 2023 | 1672531200000 | 1037.8 |
455.3 |
| 2024 | 1704067200000 | 681.1 |
629.9 |
| 2025 | 1735689600000 | 635.1 |
784.7 |
| 2026 | 1767225600000 |
223.5 |
513.2 |
|