| 年度 | 实际值 |
|---|---|
| 1992 | 3957 |
| 1993 | |
| 1994 | |
| 1995 | 6950 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 17737 |
| 2000 | 15632 |
| 2001 | 16764 |
| 2002 | 17922 |
| 2003 | 20974 |
| 2004 | 24570 |
| 2005 | 25106 |
| 2006 | 28147 |
| 2007 | 32376 |
| 2008 | 43947 |
| 2009 | 78643 |
| 2010 | 91693 |
| 2011 | 95602 |
| 2012 | 117288 |
| 2013 | 151779 |
| 2014 | 224064 |
| 2015 | 256094 |
| 2016 | 258009 |
| 2017 | 397095 |