| 年度 | 实际值 |
|---|---|
| 1995 | 3683 |
| 1996 | 3053 |
| 1997 | 878 |
| 1998 | 1184 |
| 1999 | 7534 |
| 2000 | 3550 |
| 2001 | 791 |
| 2002 | 10665 |
| 2003 | 11330 |
| 2004 | 11677 |
| 2005 | 8497 |
| 2006 | 58483 |
| 2007 | 74613 |
| 2008 | 93203 |
| 2009 | |
| 2010 | 104974 |
| 2011 | 260453 |
| 2012 | 246632 |
| 2013 | 362792 |
| 2014 | 452141 |
| 2015 | 494292 |
| 2016 | 550601 |
| 2017 | 602543 |
| 2018 | 571571 |