| 年度 | 实际值 |
|---|---|
| 1995 | 2530 |
| 1996 | 404 |
| 1997 | 330 |
| 1998 | 5088 |
| 1999 | 13692 |
| 2000 | 5986 |
| 2001 | 8459 |
| 2002 | 22400 |
| 2003 | 39738 |
| 2004 | 42546 |
| 2005 | 32798 |
| 2006 | 39220 |
| 2007 | 56427 |
| 2008 | 79146 |
| 2009 | |
| 2010 | 124829 |
| 2011 | 24352 |
| 2012 | 304588 |
| 2013 | 554565 |
| 2014 | 450204 |
| 2015 | 176113 |
| 2016 | 280912 |
| 2017 | 284109 |
| 2018 | 517800 |