| 年度 | 实际值 |
|---|---|
| 1992 | 355 |
| 1993 | |
| 1994 | |
| 1995 | 2859 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 10732 |
| 2000 | 11161 |
| 2001 | 12965 |
| 2002 | 14083 |
| 2003 | 16077 |
| 2004 | 17967 |
| 2005 | 20217 |
| 2006 | 18078 |
| 2007 | 19148 |
| 2008 | 19384 |
| 2009 | 30500 |
| 2010 | 50000 |
| 2011 | 50000 |
| 2012 | 85600 |
| 2013 | 106674 |
| 2014 | 120947 |
| 2015 | 138372 |
| 2016 | 168119 |
| 2017 | 183910 |