| 年度 | 实际值 |
|---|---|
| 1992 | 32000 |
| 1993 | |
| 1994 | |
| 1995 | 41000 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 83000 |
| 2000 | 9700 |
| 2001 | 108000 |
| 2002 | 116000 |
| 2003 | 125000 |
| 2004 | 126000 |
| 2005 | 136000 |
| 2006 | |
| 2007 | 180000 |
| 2008 | 190000 |
| 2009 | 210000 |
| 2010 | 210000 |
| 2011 | 240000 |
| 2012 | 260000 |
| 2013 | 270000 |
| 2014 | 280000 |
| 2015 | 280000 |
| 2016 | 280000 |
| 2017 | 290000 |