| 年度 | 实际值 |
|---|---|
| 1992 | 4764 |
| 1993 | |
| 1994 | |
| 1995 | 9343 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 16219 |
| 2000 | 19661 |
| 2001 | 20502 |
| 2002 | 21632 |
| 2003 | 23754 |
| 2004 | 23190 |
| 2005 | 26940 |
| 2006 | 20739 |
| 2007 | 22710 |
| 2008 | 25936 |
| 2009 | 36276 |
| 2010 | 46500 |
| 2011 | 57853 |
| 2012 | 79400 |
| 2013 | 105075 |
| 2014 | 144450 |
| 2015 | 174089 |
| 2016 | 231974 |
| 2017 | 255012 |