| 年度 | 实际值 |
|---|---|
| 1992 | 3920 |
| 1993 | 4626 |
| 1994 | 2768 |
| 1995 | 2938 |
| 1996 | 3890 |
| 1997 | 4495 |
| 1998 | 5231 |
| 1999 | 5322 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 22086 |
| 2004 | 24749 |
| 2005 | 32404 |
| 2006 | 41505 |
| 2007 | 63445 |
| 2008 | 87279 |
| 2009 | |
| 2010 | 105974 |
| 2011 | 167983 |
| 2012 | 174951 |
| 2013 | 164168 |
| 2014 | 175319 |
| 2015 | 222318 |
| 2016 | 256519 |
| 2017 | 252501 |
| 2018 | 299658 |