| 年度 | 实际值 |
|---|---|
| 1992 | 2646 |
| 1993 | |
| 1994 | |
| 1995 | 4207 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 16254 |
| 2000 | 18198 |
| 2001 | 20490 |
| 2002 | 25981 |
| 2003 | 31610 |
| 2004 | 22220 |
| 2005 | 26229 |
| 2006 | 37321 |
| 2007 | 53184 |
| 2008 | 63740 |
| 2009 | 70899 |
| 2010 | 100480 |
| 2011 | 129744 |
| 2012 | 166327 |
| 2013 | 211686 |
| 2014 | 222965 |
| 2015 | 272300 |
| 2016 | 280569 |