|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1980 | 315532800000 | 39.0 |
|
| 1981 | 347155200000 | 14.7 |
|
| 1982 | 378691200000 | 61.1 |
38.3 |
| 1983 | 410227200000 | 55.7 |
43.8 |
| 1984 | 441763200000 | 43.2 |
53.4 |
| 1985 | 473385600000 | 20.5 |
39.8 |
| 1986 | 504921600000 | 46.3 |
36.7 |
| 1987 | 536457600000 | 11.6 |
26.1 |
| 1988 | 567993600000 | 10.1 |
22.7 |
| 1989 | 599616000000 | 31.5 |
17.7 |
| 1990 | 631152000000 | 18.8 |
20.1 |
| 1991 | 662688000000 | 15.9 |
22.1 |
| 1992 | 694224000000 | 11.9 |
15.5 |
| 1993 | 725846400000 | 38.2 |
22.0 |
| 1994 | 757382400000 | 10.3 |
20.1 |
| 1995 | 788918400000 | 54.4 |
34.3 |
| 1996 | 820454400000 | 41.1 |
35.3 |
| 1997 | 852076800000 | 47.7 |
47.8 |
| 1998 | 883612800000 | 39.3 |
42.7 |
| 1999 | 915148800000 | 38.1 |
41.7 |
| 2000 | 946684800000 | 25.5 |
34.3 |
| 2001 | 978307200000 | 11.1 |
24.9 |
| 2002 | 1009843200000 | 23.6 |
20.1 |
| 2003 | 1041379200000 | 30.2 |
21.6 |
| 2004 | 1072915200000 | 21.5 |
25.1 |
| 2005 | 1104537600000 | 32.8 |
28.2 |
| 2006 | 1136073600000 | 50.7 |
35.0 |
| 2007 | 1167609600000 | 16.9 |
33.5 |
| 2008 | 1199145600000 | 18.3 |
28.6 |
| 2009 | 1230768000000 | 26.2 |
20.5 |
| 2010 | 1262304000000 | 26.4 |
23.6 |
| 2011 | 1293840000000 | 50.9 |
34.5 |
| 2012 | 1325376000000 | 19.9 |
32.4 |
| 2013 | 1356998400000 | 20.7 |
30.5 |
| 2014 | 1388534400000 | 14.0 |
18.2 |
| 2015 | 1420070400000 | 12.9 |
15.9 |
| 2016 | 1451606400000 | 33.4 |
20.1 |
| 2017 | 1483228800000 | 81.3 |
42.5 |
| 2018 | 1514764800000 | 26.9 |
47.2 |
| 2019 | 1546300800000 | 41.3 |
49.8 |
| 2020 | 1577836800000 | 17.2 |
28.5 |
| 2021 | 1609459200000 | 10.5 |
23.0 |
| 2022 | 1640995200000 | 26.4 |
18.0 |
| 2023 | 1672531200000 | 47.9 |
28.3 |
| 2024 | 1704067200000 | 26.9 |
33.7 |
| 2025 | 1735689600000 | 27.6 |
34.2 |
| 2026 | 1767225600000 |
36.5 |
30.3 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1980 | 315532800000 | 22.6 |
|
| 1981 | 347155200000 | 8.5 |
|
| 1982 | 378691200000 | 28.3 |
19.8 |
| 1983 | 410227200000 | 37.5 |
24.8 |
| 1984 | 441763200000 | 18.8 |
28.2 |
| 1985 | 473385600000 | 13.6 |
23.3 |
| 1986 | 504921600000 | 19.1 |
17.2 |
| 1987 | 536457600000 | 7.3 |
13.3 |
| 1988 | 567993600000 | 5.4 |
10.6 |
| 1989 | 599616000000 | 17.3 |
10.0 |
| 1990 | 631152000000 | 10.1 |
11.0 |
| 1991 | 662688000000 | 11.6 |
13.0 |
| 1992 | 694224000000 | 5.9 |
9.2 |
| 1993 | 725846400000 | 27.0 |
14.8 |
| 1994 | 757382400000 | 6.3 |
13.1 |
| 1995 | 788918400000 | 36.0 |
23.1 |
| 1996 | 820454400000 | 24.3 |
22.2 |
| 1997 | 852076800000 | 15.6 |
25.3 |
| 1998 | 883612800000 | 27.0 |
22.3 |
| 1999 | 915148800000 | 25.9 |
22.8 |
| 2000 | 946684800000 | 15.4 |
22.8 |
| 2001 | 978307200000 | 6.3 |
15.9 |
| 2002 | 1009843200000 | 14.3 |
12.0 |
| 2003 | 1041379200000 | 17.4 |
12.6 |
| 2004 | 1072915200000 | 10.5 |
14.1 |
| 2005 | 1104537600000 | 23.7 |
17.2 |
| 2006 | 1136073600000 | 25.2 |
19.8 |
| 2007 | 1167609600000 | 7.6 |
18.8 |
| 2008 | 1199145600000 | 11.4 |
14.7 |
| 2009 | 1230768000000 | 16.4 |
11.8 |
| 2010 | 1262304000000 | 19.6 |
15.8 |
| 2011 | 1293840000000 | 34.7 |
23.6 |
| 2012 | 1325376000000 | 11.9 |
22.1 |
| 2013 | 1356998400000 | 6.5 |
17.7 |
| 2014 | 1388534400000 | 5.9 |
8.1 |
| 2015 | 1420070400000 | 3.0 |
5.1 |
| 2016 | 1451606400000 | 14.8 |
7.9 |
| 2017 | 1483228800000 | 37.8 |
18.5 |
| 2018 | 1514764800000 | 13.3 |
21.9 |
| 2019 | 1546300800000 | 30.3 |
27.1 |
| 2020 | 1577836800000 | 11.1 |
18.2 |
| 2021 | 1609459200000 | 6.4 |
15.9 |
| 2022 | 1640995200000 | 12.3 |
9.9 |
| 2023 | 1672531200000 | 33.9 |
17.5 |
| 2024 | 1704067200000 | 16.8 |
21.0 |
| 2025 | 1735689600000 | 14.4 |
21.7 |
| 2026 | 1767225600000 |
12.8 |
14.7 |
|