| 年度 | 实际值 |
|---|---|
| 1992 | 6872 |
| 1993 | |
| 1994 | |
| 1995 | 15745 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 33155 |
| 2000 | 34652 |
| 2001 | 29118 |
| 2002 | 29551 |
| 2003 | 35465 |
| 2004 | 37087 |
| 2005 | 38212 |
| 2006 | 41352 |
| 2007 | 43175 |
| 2008 | 40118 |
| 2009 | 69700 |
| 2010 | 95904 |
| 2011 | 95904 |
| 2012 | 120775 |
| 2013 | 148771 |
| 2014 | 175977 |
| 2015 | 198406 |
| 2016 | 202768 |
| 2017 | 231286 |