| 年度 | 实际值 |
|---|---|
| 1995 | 827 |
| 1996 | 1270 |
| 1997 | |
| 1998 | 2571 |
| 1999 | 8631 |
| 2000 | 11276 |
| 2001 | 27213 |
| 2002 | 21828 |
| 2003 | 17848 |
| 2004 | 2000 |
| 2005 | 53632 |
| 2006 | 46337 |
| 2007 | 52913 |
| 2008 | 72182 |
| 2009 | |
| 2010 | 155379 |
| 2011 | 172744 |
| 2012 | 159173 |
| 2013 | 177198 |
| 2014 | 241361 |
| 2015 | 259827 |
| 2016 | 248187 |
| 2017 | 261613 |
| 2018 | 413465 |