Year by year
Thirty-four years. The volume swings about 40% with rainfall; the count of points reporting use stays near 26,192.
| Year | Acre-feet | Share |
|---|---|---|
| 2023 | 4,482,689 | 7519.4% |
| 2022 | 6,087,338 | 10211.1% |
| 2021 | 5,793,607 | 9718.4% |
| 2020 | 6,187,504 | 10379.1% |
| 2019 | 4,714,914 | 7908.9% |
| 2018 | 5,183,645 | 8695.2% |
| 2017 | 5,468,202 | 9172.5% |
| 2016 | 5,539,658 | 9292.4% |
| 2015 | 4,768,277 | 7998.5% |
| 2014 | 4,979,459 | 8352.7% |
| 2013 | 5,083,268 | 8526.8% |
| 2012 | 5,736,318 | 9622.3% |
| 2011 | 6,168,180 | 10346.7% |
| 2010 | 5,225,571 | 8765.5% |
| 2009 | 4,772,103 | 8004.9% |
| 2008 | 4,877,746 | 8182.1% |
| 2007 | 4,703,046 | 7889.0% |
| 2006 | 4,985,462 | 8362.8% |
| 2005 | 4,580,074 | 7682.8% |
| 2004 | 4,811,662 | 8071.2% |
| 2003 | 5,319,435 | 8923.0% |
| 2002 | 5,985,182 | 10039.7% |
| 2001 | 5,617,732 | 9423.4% |
| 2000 | 6,374,054 | 10692.0% |
| 1999 | 5,578,425 | 9357.4% |
| 1998 | 5,755,680 | 9654.8% |
| 1997 | 5,493,787 | 9215.4% |
| 1996 | 5,605,153 | 9402.3% |
| 1995 | 4,418,233 | 7411.3% |
| 1994 | 4,696,430 | 7877.9% |
| 1993 | 3,525,238 | 5913.3% |
| 1992 | 3,989,212 | 6691.6% |
| 1991 | 5,433,882 | 9115.0% |
| 1990 | 5,352,005 | 8977.6% |