| 年度 | 实际值 |
|---|---|
| 1992 | 2186 |
| 1993 | |
| 1994 | |
| 1995 | 2785 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 10513 |
| 2000 | 11649 |
| 2001 | 13242 |
| 2002 | 16131 |
| 2003 | 16409 |
| 2004 | 18162 |
| 2005 | 23203 |
| 2006 | 30060 |
| 2007 | 39834 |
| 2008 | 52809 |
| 2009 | 67035 |
| 2010 | 116960 |
| 2011 | 117729 |
| 2012 | 138687 |
| 2013 | 160013 |
| 2014 | 171361 |
| 2015 | 194779 |
| 2016 | 193844 |