|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1942 | -883612800000 | 512.4 |
|
| 1943 | -852076800000 | 601.8 |
|
| 1944 | -820540800000 | 168.8 |
427.7 |
| 1945 | -788918400000 | 293.1 |
354.6 |
| 1946 | -757382400000 | 457.8 |
306.6 |
| 1947 | -725846400000 | 219.0 |
323.3 |
| 1948 | -694310400000 | 354.0 |
343.6 |
| 1949 | -662688000000 | 289.0 |
287.3 |
| 1950 | -631152000000 | 343.0 |
328.7 |
| 1951 | -599616000000 | 669.4 |
433.8 |
| 1952 | -568080000000 | 740.0 |
584.1 |
| 1953 | -536457600000 | 691.3 |
700.3 |
| 1954 | -504921600000 | 579.0 |
670.1 |
| 1955 | -473385600000 | 158.7 |
476.4 |
| 1956 | -441849600000 | 909.5 |
549.1 |
| 1957 | -410227200000 | 420.8 |
496.3 |
| 1958 | -378691200000 | 944.2 |
758.2 |
| 1959 | -347155200000 | 286.8 |
550.6 |
| 1960 | -315619200000 | 282.6 |
504.5 |
| 1961 | -283996800000 | 382.6 |
317.3 |
| 1962 | -252460800000 | 288.6 |
318.0 |
| 1963 | -220924800000 | 658.8 |
443.4 |
| 1964 | -189388800000 | 315.6 |
421.0 |
| 1965 | -157766400000 | 780.6 |
585.0 |
| 1966 | -126230400000 | 345.3 |
480.5 |
| 1967 | -94694400000 | 471.5 |
532.5 |
| 1968 | -63158400000 | 324.1 |
380.3 |
| 1969 | -31536000000 | 568.4 |
454.7 |
| 1970 | 0000 | 624.8 |
505.8 |
| 1971 | 31536000000 | 785.3 |
659.5 |
| 1972 | 63072000000 | 540.2 |
650.1 |
| 1973 | 94694400000 | 273.6 |
533.0 |
| 1974 | 126230400000 | 1082.9 |
632.3 |
| 1975 | 157766400000 | 587.2 |
647.9 |
| 1976 | 189302400000 | 291.5 |
653.9 |
| 1977 | 220924800000 | 54.2 |
311.0 |
| 1978 | 252460800000 | 574.6 |
306.8 |
| 1979 | 283996800000 | | |
|---|
| 1980 | 315532800000 | 504.4 |
|
| 1981 | 347155200000 | 217.3 |
|
| 1982 | 378691200000 | 856.8 |
526.2 |
| 1983 | 410227200000 | 916.3 |
663.5 |
| 1984 | 441763200000 | 596.1 |
789.7 |
| 1985 | 473385600000 | 308.3 |
606.9 |
| 1986 | 504921600000 | 520.6 |
475.0 |
| 1987 | 536457600000 | 227.2 |
352.0 |
| 1988 | 567993600000 | 224.5 |
324.1 |
| 1989 | 599616000000 | 356.4 |
269.4 |
| 1990 | 631152000000 | 202.8 |
261.3 |
| 1991 | 662688000000 | 118.9 |
226.0 |
| 1992 | 694224000000 | 146.8 |
156.2 |
| 1993 | 725846400000 | 499.8 |
255.2 |
| 1994 | 757382400000 | 121.4 |
256.0 |
| 1995 | 788918400000 | 686.5 |
435.9 |
| 1996 | 820454400000 | 632.4 |
480.1 |
| 1997 | 852076800000 | 702.0 |
673.6 |
| 1998 | 883612800000 | 723.2 |
685.9 |
| 1999 | 915148800000 | 628.6 |
684.6 |
| 2000 | 946684800000 | 422.6 |
591.5 |
| 2001 | 978307200000 | 95.9 |
382.3 |
| 2002 | 1009843200000 | 297.6 |
272.0 |
| 2003 | 1041379200000 | 584.3 |
325.9 |
| 2004 | 1072915200000 | 355.5 |
412.4 |
| 2005 | 1104537600000 | 315.5 |
418.4 |
| 2006 | 1136073600000 | 906.2 |
525.7 |
| 2007 | 1167609600000 | 297.1 |
506.3 |
| 2008 | 1199145600000 | 299.0 |
500.8 |
| 2009 | 1230768000000 | 195.0 |
263.7 |
| 2010 | 1262304000000 | 335.1 |
276.4 |
| 2011 | 1293840000000 | 556.6 |
362.2 |
| 2012 | 1325376000000 | 315.2 |
402.3 |
| 2013 | 1356998400000 | 236.4 |
369.4 |
| 2014 | 1388534400000 | 122.8 |
224.8 |
| 2015 | 1420070400000 | 293.0 |
217.4 |
| 2016 | 1451606400000 | 491.5 |
302.4 |
| 2017 | 1483228800000 | 864.0 |
549.5 |
| 2018 | 1514764800000 | 184.8 |
513.4 |
| 2019 | 1546300800000 | 409.6 |
486.1 |
| 2020 | 1577836800000 | 122.0 |
238.8 |
| 2021 | 1609459200000 | 109.5 |
213.7 |
| 2022 | 1640995200000 | 137.7 |
123.1 |
| 2023 | 1672531200000 | 371.6 |
206.2 |
| 2024 | 1704067200000 | 402.1 |
303.8 |
| 2025 | 1735689600000 | 644.5 |
472.8 |
| 2026 | 1767225600000 |
308.8 |
451.8 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1942 | -883612800000 | 206.1 |
|
| 1943 | -852076800000 | 201.0 |
|
| 1944 | -820540800000 | 89.1 |
165.4 |
| 1945 | -788918400000 | 155.9 |
148.7 |
| 1946 | -757382400000 | 200.5 |
148.5 |
| 1947 | -725846400000 | 91.4 |
149.3 |
| 1948 | -694310400000 | 202.3 |
164.8 |
| 1949 | -662688000000 | 181.0 |
158.2 |
| 1950 | -631152000000 | 184.8 |
189.4 |
| 1951 | -599616000000 | 181.7 |
182.5 |
| 1952 | -568080000000 | 397.5 |
254.7 |
| 1953 | -536457600000 | 312.0 |
297.1 |
| 1954 | -504921600000 | 224.4 |
311.3 |
| 1955 | -473385600000 | 86.3 |
207.5 |
| 1956 | -441849600000 | 311.4 |
207.4 |
| 1957 | -410227200000 | 187.0 |
194.9 |
| 1958 | -378691200000 | 355.5 |
284.7 |
| 1959 | -347155200000 | 119.8 |
220.8 |
| 1960 | -315619200000 | 147.3 |
207.5 |
| 1961 | -283996800000 | 171.2 |
146.1 |
| 1962 | -252460800000 | 153.1 |
157.2 |
| 1963 | -220924800000 | 233.3 |
185.9 |
| 1964 | -189388800000 | 115.5 |
167.3 |
| 1965 | -157766400000 | 191.3 |
180.0 |
| 1966 | -126230400000 | 191.1 |
166.0 |
| 1967 | -94694400000 | 231.5 |
204.7 |
| 1968 | -63158400000 | 89.8 |
170.8 |
| 1969 | -31536000000 | 318.5 |
213.3 |
| 1970 | 0000 | 133.4 |
180.6 |
| 1971 | 31536000000 | 290.7 |
247.5 |
| 1972 | 63072000000 | 167.7 |
197.3 |
| 1973 | 94694400000 | 114.9 |
191.1 |
| 1974 | 126230400000 | 361.7 |
214.8 |
| 1975 | 157766400000 | 337.4 |
271.3 |
| 1976 | 189302400000 | 118.9 |
272.7 |
| 1977 | 220924800000 | 22.1 |
159.5 |
| 1978 | 252460800000 | 177.5 |
106.2 |
| 1979 | 283996800000 | | |
|---|
| 1980 | 315532800000 | 144.6 |
|
| 1981 | 347155200000 | 63.0 |
|
| 1982 | 378691200000 | 250.9 |
152.8 |
| 1983 | 410227200000 | 397.3 |
237.0 |
| 1984 | 441763200000 | 194.5 |
280.9 |
| 1985 | 473385600000 | 134.3 |
242.0 |
| 1986 | 504921600000 | 143.1 |
157.3 |
| 1987 | 536457600000 | 103.6 |
127.0 |
| 1988 | 567993600000 | 83.2 |
110.0 |
| 1989 | 599616000000 | 170.6 |
119.1 |
| 1990 | 631152000000 | 86.8 |
113.5 |
| 1991 | 662688000000 | 64.4 |
107.3 |
| 1992 | 694224000000 | 78.8 |
76.7 |
| 1993 | 725846400000 | 288.3 |
143.8 |
| 1994 | 757382400000 | 54.5 |
140.5 |
| 1995 | 788918400000 | 314.6 |
219.1 |
| 1996 | 820454400000 | 228.1 |
199.1 |
| 1997 | 852076800000 | 111.7 |
218.1 |
| 1998 | 883612800000 | 337.8 |
225.9 |
| 1999 | 915148800000 | 268.4 |
239.3 |
| 2000 | 946684800000 | 199.3 |
268.5 |
| 2001 | 978307200000 | 44.5 |
170.7 |
| 2002 | 1009843200000 | 131.5 |
125.1 |
| 2003 | 1041379200000 | 237.1 |
137.7 |
| 2004 | 1072915200000 | 151.1 |
173.2 |
| 2005 | 1104537600000 | 175.2 |
187.8 |
| 2006 | 1136073600000 | 305.6 |
210.6 |
| 2007 | 1167609600000 | 81.6 |
187.5 |
| 2008 | 1199145600000 | 168.8 |
185.3 |
| 2009 | 1230768000000 | 107.3 |
119.2 |
| 2010 | 1262304000000 | 234.6 |
170.2 |
| 2011 | 1293840000000 | 291.9 |
211.3 |
| 2012 | 1325376000000 | 197.0 |
241.2 |
| 2013 | 1356998400000 | 86.0 |
191.6 |
| 2014 | 1388534400000 | 29.7 |
104.2 |
| 2015 | 1420070400000 | 29.8 |
48.5 |
| 2016 | 1451606400000 | 175.5 |
78.3 |
| 2017 | 1483228800000 | 291.4 |
165.6 |
| 2018 | 1514764800000 | 89.6 |
185.5 |
| 2019 | 1546300800000 | 242.7 |
207.9 |
| 2020 | 1577836800000 | 57.4 |
129.9 |
| 2021 | 1609459200000 | 48.2 |
116.1 |
| 2022 | 1640995200000 | 64.3 |
56.6 |
| 2023 | 1672531200000 | 239.0 |
117.2 |
| 2024 | 1704067200000 | 184.4 |
162.6 |
| 2025 | 1735689600000 | 235.8 |
219.7 |
| 2026 | 1767225600000 |
47.5 |
155.9 |
|