| 年度 | 实际值 |
|---|---|
| 1992 | 3973 |
| 1993 | |
| 1994 | |
| 1995 | 6625 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 19190 |
| 2000 | 22323 |
| 2001 | 24249 |
| 2002 | 30239 |
| 2003 | 37337 |
| 2004 | 46492 |
| 2005 | 61918 |
| 2006 | 75001 |
| 2007 | 103209 |
| 2008 | 129035 |
| 2009 | 141836 |
| 2010 | 180637 |
| 2011 | 223916 |
| 2012 | 277196 |
| 2013 | 332516 |
| 2014 | 361768 |
| 2015 | 403916 |
| 2016 | 420176 |