| 年度 | 实际值 |
|---|---|
| 1992 | 5900 |
| 1993 | |
| 1994 | |
| 1995 | 11871 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 26523 |
| 2000 | 32644 |
| 2001 | 35585 |
| 2002 | 14829 |
| 2003 | 16460 |
| 2004 | 15247 |
| 2005 | 12632 |
| 2006 | 14402 |
| 2007 | 17295 |
| 2008 | 22484 |
| 2009 | 30002 |
| 2010 | 43450 |
| 2011 | 85009 |
| 2012 | 125100 |
| 2013 | 183200 |
| 2014 | 238100 |
| 2015 | 335500 |
| 2016 | 297695 |