| 年度 | 实际值 |
|---|---|
| 1992 | 2232 |
| 1993 | 2632 |
| 1994 | 1830 |
| 1995 | 2041 |
| 1996 | 4504 |
| 1997 | 1355 |
| 1998 | 2073 |
| 1999 | 1129 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 10845 |
| 2004 | 12861 |
| 2005 | 14011 |
| 2006 | 23329 |
| 2007 | 33398 |
| 2008 | 60909 |
| 2009 | |
| 2010 | 79095 |
| 2011 | 130514 |
| 2012 | 164350 |
| 2013 | 165210 |
| 2014 | 172754 |
| 2015 | 180958 |
| 2016 | 189632 |
| 2017 | 211113 |
| 2018 | 198714 |