| 年度 | 实际值 |
|---|---|
| 1992 | 2503 |
| 1993 | |
| 1994 | |
| 1995 | 6822 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 19263 |
| 2000 | 16962 |
| 2001 | 20607 |
| 2002 | 26118 |
| 2003 | 28208 |
| 2004 | 24495 |
| 2005 | 30724 |
| 2006 | 40901 |
| 2007 | 55261 |
| 2008 | 66567 |
| 2009 | 72821 |
| 2010 | 118400 |
| 2011 | 157926 |
| 2012 | 185728 |
| 2013 | 226769 |
| 2014 | 249901 |
| 2015 | 293191 |
| 2016 | 324207 |