|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1961 | -283996800000 | 271.4 |
|
| 1962 | -252460800000 | 629.7 |
|
| 1963 | -220924800000 | 872.0 |
591.0 |
| 1964 | -189388800000 | 446.1 |
649.3 |
| 1965 | -157766400000 | 1177.1 |
831.8 |
| 1966 | -126230400000 | 464.1 |
695.8 |
| 1967 | -94694400000 | 1183.6 |
941.6 |
| 1968 | -63158400000 | 408.5 |
685.4 |
| 1969 | -31536000000 | 1355.9 |
982.7 |
| 1970 | 0000 | 891.4 |
885.2 |
| 1971 | 31536000000 | 760.2 |
1002.5 |
| 1972 | 63072000000 | 494.6 |
715.4 |
| 1973 | 94694400000 | 786.1 |
680.3 |
| 1974 | 126230400000 | 997.3 |
759.3 |
| 1975 | 157766400000 | 754.8 |
846.1 |
| 1976 | 189302400000 | 224.3 |
658.8 |
| 1977 | 220924800000 | 120.5 |
366.6 |
| 1978 | 252460800000 | 948.1 |
431.0 |
| 1979 | 283996800000 | 672.5 |
580.4 |
| 1980 | 315532800000 | 1119.5 |
913.4 |
| 1981 | 347155200000 | 362.6 |
718.2 |
| 1982 | 378691200000 | 1503.1 |
995.1 |
| 1983 | 410227200000 | 1783.4 |
1216.4 |
| 1984 | 441763200000 | 991.5 |
1426.0 |
| 1985 | 473385600000 | 437.1 |
1070.7 |
| 1986 | 504921600000 | 1187.2 |
871.9 |
| 1987 | 536457600000 | 247.5 |
623.9 |
| 1988 | 567993600000 | 241.4 |
558.7 |
| 1989 | 599616000000 | 533.9 |
340.9 |
| 1990 | 631152000000 | 324.1 |
366.5 |
| 1991 | 662688000000 | 336.8 |
398.3 |
| 1992 | 694224000000 | 296.3 |
319.1 |
| 1993 | 725846400000 | 1007.9 |
547.0 |
| 1994 | 757382400000 | 277.0 |
527.0 |
| 1995 | 788918400000 | 1546.9 |
943.9 |
| 1996 | 820454400000 | 934.5 |
919.4 |
| 1997 | 852076800000 | 1178.2 |
1219.9 |
| 1998 | 883612800000 | 1272.9 |
1128.5 |
| 1999 | 915148800000 | 869.4 |
1106.8 |
| 2000 | 946684800000 | 699.4 |
947.2 |
| 2001 | 978307200000 | 347.3 |
638.7 |
| 2002 | 1009843200000 | 540.0 |
528.9 |
| 2003 | 1041379200000 | 619.5 |
502.3 |
| 2004 | 1072915200000 | 461.3 |
540.3 |
| 2005 | 1104537600000 | 984.6 |
688.5 |
| 2006 | 1136073600000 | 1374.5 |
940.1 |
| 2007 | 1167609600000 | 382.2 |
913.8 |
| 2008 | 1199145600000 | 369.8 |
708.8 |
| 2009 | 1230768000000 | 582.5 |
444.9 |
| 2010 | 1262304000000 | 681.9 |
544.7 |
| 2011 | 1293840000000 | 1416.8 |
893.8 |
| 2012 | 1325376000000 | 392.7 |
830.5 |
| 2013 | 1356998400000 | 413.8 |
741.1 |
| 2014 | 1388534400000 | 248.4 |
351.6 |
| 2015 | 1420070400000 | 209.6 |
290.6 |
| 2016 | 1451606400000 | 693.8 |
384.0 |
| 2017 | 1483228800000 | 1888.2 |
930.6 |
| 2018 | 1514764800000 | 599.6 |
1060.5 |
| 2019 | 1546300800000 | 1220.6 |
1236.1 |
| 2020 | 1577836800000 | 415.4 |
745.2 |
| 2021 | 1609459200000 | 208.3 |
614.8 |
| 2022 | 1640995200000 | 477.9 |
367.2 |
| 2023 | 1672531200000 | 1564.5 |
750.2 |
| 2024 | 1704067200000 | 674.0 |
905.5 |
| 2025 | 1735689600000 | 473.2 |
903.9 |
| 2026 | 1767225600000 |
738.9 |
628.7 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1961 | -283996800000 | 199.2 |
|
| 1962 | -252460800000 | 466.1 |
|
| 1963 | -220924800000 | 546.0 |
403.8 |
| 1964 | -189388800000 | 283.9 |
432.0 |
| 1965 | -157766400000 | 535.6 |
455.2 |
| 1966 | -126230400000 | 271.3 |
363.6 |
| 1967 | -94694400000 | 810.7 |
539.2 |
| 1968 | -63158400000 | 225.6 |
435.9 |
| 1969 | -31536000000 | 859.4 |
631.9 |
| 1970 | 0000 | 360.4 |
481.8 |
| 1971 | 31536000000 | 463.3 |
561.0 |
| 1972 | 63072000000 | 291.2 |
371.6 |
| 1973 | 94694400000 | 488.5 |
414.3 |
| 1974 | 126230400000 | 544.0 |
441.2 |
| 1975 | 157766400000 | 566.3 |
532.9 |
| 1976 | 189302400000 | 102.5 |
404.3 |
| 1977 | 220924800000 | 94.4 |
254.4 |
| 1978 | 252460800000 | 628.2 |
275.0 |
| 1979 | 283996800000 | 468.9 |
397.2 |
| 1980 | 315532800000 | 553.4 |
550.2 |
| 1981 | 347155200000 | 253.5 |
425.3 |
| 1982 | 378691200000 | 814.0 |
540.3 |
| 1983 | 410227200000 | 1013.9 |
693.8 |
| 1984 | 441763200000 | 401.5 |
743.1 |
| 1985 | 473385600000 | 289.8 |
568.4 |
| 1986 | 504921600000 | 489.8 |
393.7 |
| 1987 | 536457600000 | 159.8 |
313.1 |
| 1988 | 567993600000 | 147.5 |
265.7 |
| 1989 | 599616000000 | 333.7 |
213.7 |
| 1990 | 631152000000 | 196.1 |
225.8 |
| 1991 | 662688000000 | 269.0 |
266.3 |
| 1992 | 694224000000 | 168.4 |
211.2 |
| 1993 | 725846400000 | 643.5 |
360.3 |
| 1994 | 757382400000 | 189.8 |
333.9 |
| 1995 | 788918400000 | 1008.9 |
614.1 |
| 1996 | 820454400000 | 536.0 |
578.3 |
| 1997 | 852076800000 | 359.7 |
634.9 |
| 1998 | 883612800000 | 852.5 |
582.7 |
| 1999 | 915148800000 | 532.8 |
581.6 |
| 2000 | 946684800000 | 407.9 |
597.7 |
| 2001 | 978307200000 | 235.6 |
392.1 |
| 2002 | 1009843200000 | 345.3 |
329.6 |
| 2003 | 1041379200000 | 445.4 |
342.1 |
| 2004 | 1072915200000 | 252.8 |
347.8 |
| 2005 | 1104537600000 | 674.5 |
457.6 |
| 2006 | 1136073600000 | 855.7 |
594.3 |
| 2007 | 1167609600000 | 199.6 |
576.6 |
| 2008 | 1199145600000 | 258.9 |
438.1 |
| 2009 | 1230768000000 | 401.2 |
286.5 |
| 2010 | 1262304000000 | 540.4 |
400.1 |
| 2011 | 1293840000000 | 915.8 |
619.1 |
| 2012 | 1325376000000 | 273.5 |
576.5 |
| 2013 | 1356998400000 | 196.8 |
462.0 |
| 2014 | 1388534400000 | 161.2 |
210.5 |
| 2015 | 1420070400000 | 75.5 |
144.5 |
| 2016 | 1451606400000 | 370.2 |
202.3 |
| 2017 | 1483228800000 | 864.7 |
436.8 |
| 2018 | 1514764800000 | 348.6 |
527.8 |
| 2019 | 1546300800000 | 842.8 |
685.4 |
| 2020 | 1577836800000 | 301.6 |
497.7 |
| 2021 | 1609459200000 | 145.4 |
429.9 |
| 2022 | 1640995200000 | 217.9 |
221.6 |
| 2023 | 1672531200000 | 963.8 |
442.3 |
| 2024 | 1704067200000 | 445.1 |
542.3 |
| 2025 | 1735689600000 | 293.9 |
567.6 |
| 2026 | 1767225600000 |
352.5 |
363.8 |
|