| 年度 | 实际值 |
|---|---|
| 1992 | 4680 |
| 1993 | |
| 1994 | |
| 1995 | 24307 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 34986 |
| 2000 | 35310 |
| 2001 | 35221 |
| 2002 | 36546 |
| 2003 | 38931 |
| 2004 | 39890 |
| 2005 | 29816 |
| 2006 | 30861 |
| 2007 | 30953 |
| 2008 | 76032 |
| 2009 | 34288 |
| 2010 | 59963 |
| 2011 | 59963 |
| 2012 | 112415 |
| 2013 | 144998 |
| 2014 | 162540 |
| 2015 | 163647 |
| 2016 | 226689 |
| 2017 | 316899 |