| 年度 | 实际值 |
|---|---|
| 1992 | 13411 |
| 1993 | |
| 1994 | |
| 1995 | 25794 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 39788 |
| 2000 | 34380 |
| 2001 | 32234 |
| 2002 | 35329 |
| 2003 | 36611 |
| 2004 | 37586 |
| 2005 | 53585 |
| 2006 | 42562 |
| 2007 | 55476 |
| 2008 | 53769 |
| 2009 | 106789 |
| 2010 | 248318 |
| 2011 | 274359 |
| 2012 | 356509 |
| 2013 | 433450 |
| 2014 | 426842 |
| 2015 | 426800 |
| 2016 | 511243 |
| 2017 | 311203 |