| 年度 | 实际值 |
|---|---|
| 1992 | 198 |
| 1993 | |
| 1994 | |
| 1995 | 5378 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 10685 |
| 2000 | 8024 |
| 2001 | 15705 |
| 2002 | 15051 |
| 2003 | 16372 |
| 2004 | 10772 |
| 2005 | 14487 |
| 2006 | 14993 |
| 2007 | 16095 |
| 2008 | 20385 |
| 2009 | 28404 |
| 2010 | 54289 |
| 2011 | 53989 |
| 2012 | 72154 |
| 2013 | 78819 |
| 2014 | 100210 |
| 2015 | 70489 |
| 2016 | 160431 |
| 2017 | 270632 |