| 年度 | 实际值 |
|---|---|
| 1992 | 3044 |
| 1993 | |
| 1994 | |
| 1995 | 3492 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 14985 |
| 2000 | 16296 |
| 2001 | 17497 |
| 2002 | 19316 |
| 2003 | 22068 |
| 2004 | 25393 |
| 2005 | 28600 |
| 2006 | 37676 |
| 2007 | 49495 |
| 2008 | 55798 |
| 2009 | 90049 |
| 2010 | 113395 |
| 2011 | 157691 |
| 2012 | 182125 |
| 2013 | 234977 |
| 2014 | 249250 |
| 2015 | 311672 |
| 2016 | 330611 |