ປະລິມານນ້ຳຝົນປະຈຳປີ (ມມ)
| ປີ | ປະລິມານນ້ຳຝົນປະຈຳປີ (ມມ) |
|---|---|
| 1990 | 1,347.67 |
| 1991 | 1,346.52 |
| 1992 | 1,354.71 |
| 1993 | 1,302.75 |
| 1994 | 1,722.96 |
| 1995 | 1,585.07 |
| 1996 | 1,950.38 |
| 1997 | 1,769.94 |
| 1998 | 1,464.41 |
| 1999 | 1,912.83 |
| 2000 | 1,944.72 |
| 2001 | 1,904.76 |
| 2002 | 2,097.77 |
| 2003 | 1,670.18 |
| 2004 | 1,837.37 |
| 2005 | 2,074.68 |
| 2006 | 1,946.89 |
| 2007 | 1,699.02 |
| 2008 | 2,123.80 |
| 2009 | 1,767.69 |
| 2010 | 1,705.31 |
| 2011 | 2,162.75 |
| 2012 | 1,794.66 |
| 2013 | 2,091.56 |
| 2014 | 1,977.46 |
| 2015 | 1,781.73 |
| 2016 | 1,797.09 |
| 2017 | 1,877.92 |
| 2018 | 2,089.48 |
| 2019 | 1,498.34 |
| 2020 | 1,508.96 |
| 2021 | 1,744.22 |
| 2022 | 1,787.94 |