|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1961 | -283996800000 | 408.0 |
|
| 1962 | -252460800000 | 984.2 |
|
| 1963 | -220924800000 | 1286.5 |
892.9 |
| 1964 | -189388800000 | 614.6 |
961.8 |
| 1965 | -157766400000 | 1718.8 |
1206.6 |
| 1966 | -126230400000 | 709.3 |
1014.2 |
| 1967 | -94694400000 | 1906.1 |
1444.7 |
| 1968 | -63158400000 | 666.0 |
1093.8 |
| 1969 | -31536000000 | 2211.6 |
1594.6 |
| 1970 | 0000 | 1318.7 |
1398.8 |
| 1971 | 31536000000 | 1090.4 |
1540.3 |
| 1972 | 63072000000 | 784.1 |
1064.4 |
| 1973 | 94694400000 | 1346.3 |
1073.6 |
| 1974 | 126230400000 | 1568.0 |
1232.8 |
| 1975 | 157766400000 | 1447.6 |
1454.0 |
| 1976 | 189302400000 | 329.8 |
1115.1 |
| 1977 | 220924800000 | 145.2 |
640.9 |
| 1978 | 252460800000 | 2757.7 |
1077.6 |
| 1979 | 283996800000 | 1079.0 |
1327.3 |
| 1980 | 315532800000 | 1743.1 |
1859.9 |
| 1981 | 347155200000 | 555.0 |
1125.7 |
| 1982 | 378691200000 | 2250.2 |
1516.1 |
| 1983 | 410227200000 | 2749.7 |
1851.6 |
| 1984 | 441763200000 | 1578.7 |
2192.8 |
| 1985 | 473385600000 | 691.2 |
1673.2 |
| 1986 | 504921600000 | 1867.5 |
1379.1 |
| 1987 | 536457600000 | 341.0 |
966.5 |
| 1988 | 567993600000 | 322.8 |
843.7 |
| 1989 | 599616000000 | 656.2 |
440.0 |
| 1990 | 631152000000 | 453.6 |
477.5 |
| 1991 | 662688000000 | 506.6 |
538.8 |
| 1992 | 694224000000 | 432.3 |
464.2 |
| 1993 | 725846400000 | 1355.1 |
764.7 |
| 1994 | 757382400000 | 434.1 |
740.5 |
| 1995 | 788918400000 | 2248.2 |
1345.8 |
| 1996 | 820454400000 | 1488.3 |
1390.2 |
| 1997 | 852076800000 | 1889.9 |
1875.4 |
| 1998 | 883612800000 | 2082.9 |
1820.3 |
| 1999 | 915148800000 | 1430.1 |
1800.9 |
| 2000 | 946684800000 | 1203.9 |
1572.3 |
| 2001 | 978307200000 | 577.1 |
1070.4 |
| 2002 | 1009843200000 | 851.0 |
877.3 |
| 2003 | 1041379200000 | 998.2 |
808.8 |
| 2004 | 1072915200000 | 772.8 |
874.0 |
| 2005 | 1104537600000 | 1725.5 |
1165.5 |
| 2006 | 1136073600000 | 2222.4 |
1573.6 |
| 2007 | 1167609600000 | 585.2 |
1511.0 |
| 2008 | 1199145600000 | 674.8 |
1160.8 |
| 2009 | 1230768000000 | 1017.1 |
759.0 |
| 2010 | 1262304000000 | 1100.4 |
930.7 |
| 2011 | 1293840000000 | 2260.6 |
1459.4 |
| 2012 | 1325376000000 | 625.0 |
1328.7 |
| 2013 | 1356998400000 | 624.2 |
1169.9 |
| 2014 | 1388534400000 | 378.2 |
542.5 |
| 2015 | 1420070400000 | 332.7 |
445.0 |
| 2016 | 1451606400000 | 1069.1 |
593.3 |
| 2017 | 1483228800000 | 3096.5 |
1499.4 |
| 2018 | 1514764800000 | 970.0 |
1711.9 |
| 2019 | 1546300800000 | 1931.9 |
1999.5 |
| 2020 | 1577836800000 | 684.6 |
1195.5 |
| 2021 | 1609459200000 | 357.2 |
991.2 |
| 2022 | 1640995200000 | 674.2 |
572.0 |
| 2023 | 1672531200000 | 2532.1 |
1187.8 |
| 2024 | 1704067200000 | 1086.0 |
1430.8 |
| 2025 | 1735689600000 | 791.0 |
1469.7 |
| 2026 | 1767225600000 |
1178.0 |
1018.3 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1961 | -283996800000 | 259.8 |
|
| 1962 | -252460800000 | 737.3 |
|
| 1963 | -220924800000 | 845.6 |
614.3 |
| 1964 | -189388800000 | 397.9 |
660.3 |
| 1965 | -157766400000 | 862.1 |
701.9 |
| 1966 | -126230400000 | 405.8 |
555.3 |
| 1967 | -94694400000 | 1344.1 |
870.7 |
| 1968 | -63158400000 | 367.7 |
705.9 |
| 1969 | -31536000000 | 1416.5 |
1042.8 |
| 1970 | 0000 | 584.9 |
789.7 |
| 1971 | 31536000000 | 675.6 |
892.3 |
| 1972 | 63072000000 | 442.2 |
567.6 |
| 1973 | 94694400000 | 907.6 |
675.1 |
| 1974 | 126230400000 | 877.6 |
742.4 |
| 1975 | 157766400000 | 1116.8 |
967.3 |
| 1976 | 189302400000 | 146.9 |
713.8 |
| 1977 | 220924800000 | 92.3 |
452.0 |
| 1978 | 252460800000 | 1961.2 |
733.5 |
| 1979 | 283996800000 | 699.0 |
917.5 |
| 1980 | 315532800000 | 896.6 |
1185.6 |
| 1981 | 347155200000 | 374.1 |
656.6 |
| 1982 | 378691200000 | 1226.0 |
832.3 |
| 1983 | 410227200000 | 1558.1 |
1052.8 |
| 1984 | 441763200000 | 644.3 |
1142.8 |
| 1985 | 473385600000 | 432.2 |
878.2 |
| 1986 | 504921600000 | 808.1 |
628.2 |
| 1987 | 536457600000 | 210.0 |
483.4 |
| 1988 | 567993600000 | 178.1 |
398.7 |
| 1989 | 599616000000 | 397.1 |
261.7 |
| 1990 | 631152000000 | 218.7 |
264.6 |
| 1991 | 662688000000 | 328.7 |
314.8 |
| 1992 | 694224000000 | 198.9 |
248.8 |
| 1993 | 725846400000 | 774.8 |
434.1 |
| 1994 | 757382400000 | 227.8 |
400.5 |
| 1995 | 788918400000 | 1348.7 |
783.8 |
| 1996 | 820454400000 | 780.1 |
785.5 |
| 1997 | 852076800000 | 640.6 |
923.1 |
| 1998 | 883612800000 | 1330.0 |
916.9 |
| 1999 | 915148800000 | 835.7 |
935.5 |
| 2000 | 946684800000 | 686.7 |
950.8 |
| 2001 | 978307200000 | 364.7 |
629.0 |
| 2002 | 1009843200000 | 544.0 |
531.8 |
| 2003 | 1041379200000 | 688.7 |
532.4 |
| 2004 | 1072915200000 | 418.9 |
550.5 |
| 2005 | 1104537600000 | 1151.8 |
753.1 |
| 2006 | 1136073600000 | 1362.6 |
977.8 |
| 2007 | 1167609600000 | 308.6 |
941.0 |
| 2008 | 1199145600000 | 455.1 |
708.7 |
| 2009 | 1230768000000 | 656.5 |
473.4 |
| 2010 | 1262304000000 | 809.4 |
640.3 |
| 2011 | 1293840000000 | 1365.5 |
943.8 |
| 2012 | 1325376000000 | 392.2 |
855.7 |
| 2013 | 1356998400000 | 292.9 |
683.5 |
| 2014 | 1388534400000 | 240.0 |
308.4 |
| 2015 | 1420070400000 | 135.7 |
222.9 |
| 2016 | 1451606400000 | 557.2 |
311.0 |
| 2017 | 1483228800000 | 1447.4 |
713.4 |
| 2018 | 1514764800000 | 568.6 |
857.7 |
| 2019 | 1546300800000 | 1245.1 |
1087.0 |
| 2020 | 1577836800000 | 455.0 |
756.3 |
| 2021 | 1609459200000 | 220.0 |
640.0 |
| 2022 | 1640995200000 | 316.9 |
330.6 |
| 2023 | 1672531200000 | 1506.8 |
681.2 |
| 2024 | 1704067200000 | 723.9 |
849.2 |
| 2025 | 1735689600000 | 477.8 |
902.8 |
| 2026 | 1767225600000 |
622.3 |
608.0 |
|