| 年度 | 实际值 |
|---|---|
| 1991 | 2981 |
| 1992 | 2373 |
| 1993 | 3580 |
| 1994 | 14435 |
| 1995 | 35749 |
| 1996 | 30494 |
| 1997 | 37643 |
| 1998 | 42767 |
| 1999 | 48196 |
| 2000 | 89567 |
| 2001 | 98018 |
| 2002 | 130101 |
| 2003 | 121003 |
| 2004 | 150594 |
| 2005 | 131435 |
| 2006 | 215592 |
| 2007 | 264502 |
| 2008 | 305848 |
| 2009 | 757736 |
| 2010 | 599102 |
| 2011 | 1512081 |
| 2012 | 801702 |
| 2013 | 920172 |
| 2014 | 987808 |
| 2015 | 870904 |