| 年度 | 实际值 |
|---|---|
| 1995 | 19050 |
| 1996 | 8989 |
| 1997 | 6694 |
| 1998 | 25548 |
| 1999 | 16986 |
| 2000 | 37574 |
| 2001 | 45263 |
| 2002 | 44270 |
| 2003 | 32587 |
| 2004 | 23644 |
| 2005 | 28320 |
| 2006 | 79766 |
| 2007 | 110005 |
| 2008 | 121984 |
| 2009 | 111584 |
| 2010 | 102500 |
| 2011 | 283543 |
| 2012 | 281330 |
| 2013 | 190787 |
| 2014 | 94194 |
| 2015 | 42500 |
| 2016 | 223057 |
| 2017 | 319977 |
| 2018 | 261865 |