| 年度 | 实际值 |
|---|---|
| 1992 | 23617 |
| 1993 | 31219 |
| 1994 | 17505 |
| 1995 | 21345 |
| 1996 | 21581 |
| 1997 | 24312 |
| 1998 | 26560 |
| 1999 | 30537 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 142684 |
| 2004 | 208121 |
| 2005 | 291831 |
| 2006 | 346248 |
| 2007 | 419356 |
| 2008 | 583540 |
| 2009 | |
| 2010 | 1000777 |
| 2011 | 1273793 |
| 2012 | 1400929 |
| 2013 | 1371568 |
| 2014 | 1381508 |
| 2015 | 1575478 |
| 2016 | 1788066 |
| 2017 | 1863368 |
| 2018 | 1915758 |