| 年度 | 实际值 |
|---|---|
| 1992 | 848 |
| 1993 | 903 |
| 1994 | 1237 |
| 1995 | 1396 |
| 1996 | 2802 |
| 1997 | 2370 |
| 1998 | 2822 |
| 1999 | 3316 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 55287 |
| 2004 | 65140 |
| 2005 | 87489 |
| 2006 | 111453 |
| 2007 | 169432 |
| 2008 | 245063 |
| 2009 | |
| 2010 | 302859 |
| 2011 | 409159 |
| 2012 | 518799 |
| 2013 | 570153 |
| 2014 | 571936 |
| 2015 | 533504 |
| 2016 | 525320 |
| 2017 | 532299 |
| 2018 | 627916 |