| 年度 | 实际值 |
|---|---|
| 1992 | 1510 |
| 1993 | |
| 1994 | |
| 1995 | 2567 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11475 |
| 2000 | 11071 |
| 2001 | 16458 |
| 2002 | 14996 |
| 2003 | 17518 |
| 2004 | 18588 |
| 2005 | 23735 |
| 2006 | 30510 |
| 2007 | 51215 |
| 2008 | 75846 |
| 2009 | 73575 |
| 2010 | 100368 |
| 2011 | 125699 |
| 2012 | 154452 |
| 2013 | 173535 |
| 2014 | 188438 |
| 2015 | 220817 |
| 2016 | 257780 |