| 年度 | 实际值 |
|---|---|
| 1992 | 554 |
| 1993 | |
| 1994 | |
| 1995 | 1234 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 7447 |
| 2000 | 8406 |
| 2001 | 12949 |
| 2002 | 11692 |
| 2003 | 13599 |
| 2004 | 14725 |
| 2005 | 20411 |
| 2006 | 27523 |
| 2007 | 33505 |
| 2008 | 51327 |
| 2009 | 60665 |
| 2010 | 89772 |
| 2011 | 100017 |
| 2012 | 119010 |
| 2013 | 125668 |
| 2014 | 158843 |
| 2015 | 190722 |
| 2016 | 228530 |