| 年度 | 实际值 |
|---|---|
| 1995 | 28205 |
| 1996 | 17392 |
| 1997 | 11469 |
| 1998 | 9855 |
| 1999 | 8415 |
| 2000 | 18341 |
| 2001 | 7181 |
| 2002 | 12661 |
| 2003 | 10647 |
| 2004 | 16918 |
| 2005 | 21633 |
| 2006 | 22968 |
| 2007 | 39473 |
| 2008 | 29116 |
| 2009 | 32969 |
| 2010 | 72116 |
| 2011 | 127367 |
| 2012 | 143275 |
| 2013 | 273544 |
| 2014 | 299258 |
| 2015 | 338729 |
| 2016 | 352402 |
| 2017 | 336777 |
| 2018 | 437874 |