| 年度 | 实际值 |
|---|---|
| 1992 | 1822 |
| 1993 | |
| 1994 | 5403 |
| 1995 | 3368 |
| 1996 | 10429 |
| 1997 | |
| 1998 | |
| 1999 | 14496 |
| 2000 | 15653 |
| 2001 | 15705 |
| 2002 | 18692 |
| 2003 | 20629 |
| 2004 | 24805 |
| 2005 | 29448 |
| 2006 | 35737 |
| 2007 | 43560 |
| 2008 | 55426 |
| 2009 | 60982 |
| 2010 | 75741 |
| 2011 | 104538 |
| 2012 | 116061 |
| 2013 | 142446 |
| 2014 | 159872 |
| 2015 | 182006 |