|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1975 | 157766400000 | 909.0 |
|
| 1976 | 189302400000 | 301.2 |
|
| 1977 | 220924800000 | 139.2 |
449.8 |
| 1978 | 252460800000 | 1150.2 |
530.2 |
| 1979 | 283996800000 | 718.4 |
669.3 |
| 1980 | 315532800000 | 1455.3 |
1108.0 |
| 1981 | 347155200000 | 413.3 |
862.4 |
| 1982 | 378691200000 | 2092.8 |
1320.5 |
| 1983 | 410227200000 | 2035.3 |
1513.8 |
| 1984 | 441763200000 | 1367.8 |
1832.0 |
| 1985 | 473385600000 | 571.4 |
1324.8 |
| 1986 | 504921600000 | 1577.0 |
1172.1 |
| 1987 | 536457600000 | 327.4 |
825.2 |
| 1988 | 567993600000 | 327.9 |
744.1 |
| 1989 | 599616000000 | 871.4 |
508.9 |
| 1990 | 631152000000 | 448.8 |
549.4 |
| 1991 | 662688000000 | 458.8 |
593.0 |
| 1992 | 694224000000 | 333.4 |
413.7 |
| 1993 | 725846400000 | 1258.5 |
683.6 |
| 1994 | 757382400000 | 310.6 |
634.2 |
| 1995 | 788918400000 | 1915.5 |
1161.5 |
| 1996 | 820454400000 | 1379.8 |
1202.0 |
| 1997 | 852076800000 | 1582.6 |
1626.0 |
| 1998 | 883612800000 | 1398.0 |
1453.5 |
| 1999 | 915148800000 | 1108.1 |
1362.9 |
| 2000 | 946684800000 | 841.0 |
1115.7 |
| 2001 | 978307200000 | 371.0 |
773.4 |
| 2002 | 1009843200000 | 752.9 |
655.0 |
| 2003 | 1041379200000 | 932.0 |
685.3 |
| 2004 | 1072915200000 | 653.9 |
779.6 |
| 2005 | 1104537600000 | 1212.2 |
932.7 |
| 2006 | 1136073600000 | 1886.8 |
1251.0 |
| 2007 | 1167609600000 | 480.2 |
1193.1 |
| 2008 | 1199145600000 | 468.9 |
945.3 |
| 2009 | 1230768000000 | 809.3 |
586.1 |
| 2010 | 1262304000000 | 860.2 |
712.8 |
| 2011 | 1293840000000 | 1647.6 |
1105.7 |
| 2012 | 1325376000000 | 603.1 |
1037.0 |
| 2013 | 1356998400000 | 596.7 |
949.1 |
| 2014 | 1388534400000 | 365.8 |
521.9 |
| 2015 | 1420070400000 | 345.0 |
435.8 |
| 2016 | 1451606400000 | 975.1 |
562.0 |
| 2017 | 1483228800000 | 2654.1 |
1324.7 |
| 2018 | 1514764800000 | 893.3 |
1507.5 |
| 2019 | 1546300800000 | 1487.1 |
1678.2 |
| 2020 | 1577836800000 | 502.6 |
961.0 |
| 2021 | 1609459200000 | 247.7 |
745.8 |
| 2022 | 1640995200000 | 684.1 |
478.1 |
| 2023 | 1672531200000 | 1483.0 |
804.9 |
| 2024 | 1704067200000 | 733.3 |
966.8 |
| 2025 | 1735689600000 | 776.2 |
997.5 |
| 2026 | 1767225600000 |
1045.8 |
851.8 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1975 | 157766400000 | 634.0 |
|
| 1976 | 189302400000 | 129.2 |
|
| 1977 | 220924800000 | 93.2 |
285.4 |
| 1978 | 252460800000 | 592.2 |
271.5 |
| 1979 | 283996800000 | 471.6 |
385.7 |
| 1980 | 315532800000 | 502.8 |
522.2 |
| 1981 | 347155200000 | 230.0 |
401.5 |
| 1982 | 378691200000 | 869.8 |
534.2 |
| 1983 | 410227200000 | 1073.8 |
724.5 |
| 1984 | 441763200000 | 387.6 |
777.0 |
| 1985 | 473385600000 | 333.1 |
598.2 |
| 1986 | 504921600000 | 383.6 |
368.1 |
| 1987 | 536457600000 | 169.3 |
295.4 |
| 1988 | 567993600000 | 141.2 |
231.4 |
| 1989 | 599616000000 | 401.0 |
237.2 |
| 1990 | 631152000000 | 234.4 |
258.9 |
| 1991 | 662688000000 | 327.8 |
321.1 |
| 1992 | 694224000000 | 138.0 |
233.4 |
| 1993 | 725846400000 | 698.6 |
388.2 |
| 1994 | 757382400000 | 169.4 |
335.3 |
| 1995 | 788918400000 | 1034.2 |
634.1 |
| 1996 | 820454400000 | 657.7 |
620.4 |
| 1997 | 852076800000 | 334.3 |
675.4 |
| 1998 | 883612800000 | 795.7 |
595.9 |
| 1999 | 915148800000 | 564.6 |
564.9 |
| 2000 | 946684800000 | 398.8 |
586.3 |
| 2001 | 978307200000 | 212.9 |
392.1 |
| 2002 | 1009843200000 | 387.9 |
333.2 |
| 2003 | 1041379200000 | 510.5 |
370.4 |
| 2004 | 1072915200000 | 278.0 |
392.1 |
| 2005 | 1104537600000 | 770.9 |
519.8 |
| 2006 | 1136073600000 | 926.9 |
658.6 |
| 2007 | 1167609600000 | 202.8 |
633.5 |
| 2008 | 1199145600000 | 289.3 |
473.0 |
| 2009 | 1230768000000 | 457.4 |
316.5 |
| 2010 | 1262304000000 | 624.5 |
457.1 |
| 2011 | 1293840000000 | 950.4 |
677.4 |
| 2012 | 1325376000000 | 356.1 |
643.7 |
| 2013 | 1356998400000 | 178.0 |
494.8 |
| 2014 | 1388534400000 | 166.5 |
233.5 |
| 2015 | 1420070400000 | 88.1 |
144.2 |
| 2016 | 1451606400000 | 337.8 |
197.5 |
| 2017 | 1483228800000 | 878.3 |
434.8 |
| 2018 | 1514764800000 | 408.2 |
541.5 |
| 2019 | 1546300800000 | 854.8 |
713.8 |
| 2020 | 1577836800000 | 325.0 |
529.3 |
| 2021 | 1609459200000 | 144.5 |
441.4 |
| 2022 | 1640995200000 | 295.2 |
254.9 |
| 2023 | 1672531200000 | 738.1 |
392.6 |
| 2024 | 1704067200000 | 402.7 |
478.7 |
| 2025 | 1735689600000 | 349.1 |
496.6 |
| 2026 | 1767225600000 |
435.4 |
395.7 |
|