| 年度 | 实际值 |
|---|---|
| 1992 | 15800 |
| 1993 | |
| 1994 | |
| 1995 | 20689 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 23654 |
| 2000 | 16048 |
| 2001 | 17616 |
| 2002 | 17765 |
| 2003 | 21396 |
| 2004 | 28761 |
| 2005 | 31396 |
| 2006 | 34640 |
| 2007 | 37338 |
| 2008 | 35912 |
| 2009 | 50139 |
| 2010 | 62447 |
| 2011 | 80302 |
| 2012 | 91563 |
| 2013 | 112671 |
| 2014 | 168192 |
| 2015 | 219729 |
| 2016 | 245730 |
| 2017 | 272258 |