| 年度 | 实际值 |
|---|---|
| 1992 | 1274 |
| 1993 | 1489 |
| 1994 | 1995 |
| 1995 | 2724 |
| 1996 | 2950 |
| 1997 | |
| 1998 | |
| 1999 | 4181 |
| 2000 | 4956 |
| 2001 | 5366 |
| 2002 | 6200 |
| 2003 | 6791 |
| 2004 | 7529 |
| 2005 | 7860 |
| 2006 | 9691 |
| 2007 | 11853 |
| 2008 | 14790 |
| 2009 | 19895 |
| 2010 | 18491 |
| 2011 | 23169 |
| 2012 | 28034 |
| 2013 | 27464 |
| 2014 | 30778 |
| 2015 | 44005 |
| 2016 | 45885 |