|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1960 | -315619200000 | 193.5 |
|
| 1961 | -283996800000 | 186.3 |
|
| 1962 | -252460800000 | 390.2 |
256.7 |
| 1963 | -220924800000 | 400.4 |
325.6 |
| 1964 | -189388800000 | 287.1 |
359.2 |
| 1965 | -157766400000 | 542.1 |
409.9 |
| 1966 | -126230400000 | 315.1 |
381.4 |
| 1967 | -94694400000 | 571.0 |
476.1 |
| 1968 | -63158400000 | 272.1 |
386.1 |
| 1969 | -31536000000 | 576.3 |
473.2 |
| 1970 | 0000 | 383.5 |
410.7 |
| 1971 | 31536000000 | 416.6 |
458.8 |
| 1972 | 63072000000 | 312.5 |
370.9 |
| 1973 | 94694400000 | 413.6 |
380.9 |
| 1974 | 126230400000 | 481.4 |
402.5 |
| 1975 | 157766400000 | 424.1 |
439.7 |
| 1976 | 189302400000 | 203.5 |
369.7 |
| 1977 | 220924800000 | 113.6 |
247.1 |
| 1978 | 252460800000 | 548.1 |
288.4 |
| 1979 | 283996800000 | 389.6 |
350.5 |
| 1980 | 315532800000 | 525.1 |
487.6 |
| 1981 | 347155200000 | 231.9 |
382.2 |
| 1982 | 378691200000 | 610.0 |
455.7 |
| 1983 | 410227200000 | 704.2 |
515.4 |
| 1984 | 441763200000 | 433.6 |
582.6 |
| 1985 | 473385600000 | 322.1 |
486.6 |
| 1986 | 504921600000 | 487.8 |
414.5 |
| 1987 | 536457600000 | 164.4 |
324.8 |
| 1988 | 567993600000 | 209.9 |
287.4 |
| 1989 | 599616000000 | 353.1 |
242.5 |
| 1990 | 631152000000 | 256.0 |
273.0 |
| 1991 | 662688000000 | 294.9 |
301.3 |
| 1992 | 694224000000 | 221.3 |
257.4 |
| 1993 | 725846400000 | 538.1 |
351.4 |
| 1994 | 757382400000 | 142.8 |
300.7 |
| 1995 | 788918400000 | 527.2 |
402.7 |
| 1996 | 820454400000 | 341.8 |
337.3 |
| 1997 | 852076800000 | 422.8 |
430.6 |
| 1998 | 883612800000 | 405.1 |
389.9 |
| 1999 | 915148800000 | 285.7 |
371.2 |
| 2000 | 946684800000 | 256.1 |
315.6 |
| 2001 | 978307200000 | 200.5 |
247.4 |
| 2002 | 1009843200000 | 224.3 |
227.0 |
| 2003 | 1041379200000 | 248.8 |
224.5 |
| 2004 | 1072915200000 | 229.6 |
234.2 |
| 2005 | 1104537600000 | 445.5 |
307.9 |
| 2006 | 1136073600000 | 452.5 |
375.9 |
| 2007 | 1167609600000 | 139.0 |
345.7 |
| 2008 | 1199145600000 | 203.9 |
265.1 |
| 2009 | 1230768000000 | 282.4 |
208.4 |
| 2010 | 1262304000000 | 306.3 |
264.2 |
| 2011 | 1293840000000 | 485.9 |
358.2 |
| 2012 | 1325376000000 | 153.8 |
315.3 |
| 2013 | 1356998400000 | 188.1 |
275.9 |
| 2014 | 1388534400000 | 100.7 |
147.5 |
| 2015 | 1420070400000 | 134.0 |
140.9 |
| 2016 | 1451606400000 | 279.8 |
171.5 |
| 2017 | 1483228800000 | 666.4 |
360.1 |
| 2018 | 1514764800000 | 256.4 |
400.9 |
| 2019 | 1546300800000 | 406.3 |
443.0 |
| 2020 | 1577836800000 | 158.6 |
273.8 |
| 2021 | 1609459200000 | 106.8 |
223.9 |
| 2022 | 1640995200000 | 219.4 |
161.6 |
| 2023 | 1672531200000 | 585.9 |
304.0 |
| 2024 | 1704067200000 | 290.0 |
365.1 |
| 2025 | 1735689600000 | 230.9 |
368.9 |
| 2026 | 1767225600000 |
329.2 |
283.4 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1960 | -315619200000 | 128.0 |
|
| 1961 | -283996800000 | 138.5 |
|
| 1962 | -252460800000 | 315.3 |
194.0 |
| 1963 | -220924800000 | 238.1 |
230.6 |
| 1964 | -189388800000 | 184.9 |
246.1 |
| 1965 | -157766400000 | 298.7 |
240.6 |
| 1966 | -126230400000 | 194.8 |
226.1 |
| 1967 | -94694400000 | 367.9 |
287.1 |
| 1968 | -63158400000 | 151.3 |
238.0 |
| 1969 | -31536000000 | 420.8 |
313.3 |
| 1970 | 0000 | 197.5 |
256.5 |
| 1971 | 31536000000 | 258.7 |
292.4 |
| 1972 | 63072000000 | 203.2 |
219.8 |
| 1973 | 94694400000 | 298.9 |
253.6 |
| 1974 | 126230400000 | 269.0 |
257.0 |
| 1975 | 157766400000 | 307.8 |
291.9 |
| 1976 | 189302400000 | 99.3 |
225.4 |
| 1977 | 220924800000 | 86.9 |
164.7 |
| 1978 | 252460800000 | 372.7 |
186.3 |
| 1979 | 283996800000 | 254.3 |
238.0 |
| 1980 | 315532800000 | 307.8 |
311.6 |
| 1981 | 347155200000 | 141.2 |
234.4 |
| 1982 | 378691200000 | 338.0 |
262.4 |
| 1983 | 410227200000 | 451.1 |
310.1 |
| 1984 | 441763200000 | 217.2 |
335.5 |
| 1985 | 473385600000 | 197.8 |
288.7 |
| 1986 | 504921600000 | 272.6 |
229.2 |
| 1987 | 536457600000 | 96.5 |
189.0 |
| 1988 | 567993600000 | 120.7 |
163.3 |
| 1989 | 599616000000 | 218.3 |
145.2 |
| 1990 | 631152000000 | 127.6 |
155.5 |
| 1991 | 662688000000 | 223.8 |
189.9 |
| 1992 | 694224000000 | 127.5 |
159.7 |
| 1993 | 725846400000 | 369.7 |
240.3 |
| 1994 | 757382400000 | 105.0 |
200.7 |
| 1995 | 788918400000 | 373.1 |
282.6 |
| 1996 | 820454400000 | 237.8 |
238.6 |
| 1997 | 852076800000 | 183.4 |
264.7 |
| 1998 | 883612800000 | 319.5 |
246.9 |
| 1999 | 915148800000 | 215.1 |
239.3 |
| 2000 | 946684800000 | 202.7 |
245.8 |
| 2001 | 978307200000 | 129.2 |
182.4 |
| 2002 | 1009843200000 | 161.7 |
164.5 |
| 2003 | 1041379200000 | 183.2 |
158.0 |
| 2004 | 1072915200000 | 148.4 |
164.4 |
| 2005 | 1104537600000 | 344.8 |
225.4 |
| 2006 | 1136073600000 | 326.8 |
273.3 |
| 2007 | 1167609600000 | 91.6 |
254.4 |
| 2008 | 1199145600000 | 149.9 |
189.4 |
| 2009 | 1230768000000 | 196.6 |
146.0 |
| 2010 | 1262304000000 | 243.5 |
196.7 |
| 2011 | 1293840000000 | 346.9 |
262.3 |
| 2012 | 1325376000000 | 109.0 |
233.2 |
| 2013 | 1356998400000 | 101.9 |
185.9 |
| 2014 | 1388534400000 | 76.7 |
95.9 |
| 2015 | 1420070400000 | 55.9 |
78.1 |
| 2016 | 1451606400000 | 172.9 |
101.8 |
| 2017 | 1483228800000 | 389.2 |
206.0 |
| 2018 | 1514764800000 | 158.6 |
240.2 |
| 2019 | 1546300800000 | 330.8 |
292.8 |
| 2020 | 1577836800000 | 118.8 |
202.7 |
| 2021 | 1609459200000 | 83.5 |
177.7 |
| 2022 | 1640995200000 | 103.2 |
101.8 |
| 2023 | 1672531200000 | 424.9 |
203.8 |
| 2024 | 1704067200000 | 225.1 |
251.0 |
| 2025 | 1735689600000 | 154.3 |
268.1 |
| 2026 | 1767225600000 |
172.7 |
184.0 |
|