| 年度 | 实际值 |
|---|---|
| 1995 | 6971 |
| 1996 | 5876 |
| 1997 | 5308 |
| 1998 | 8316 |
| 1999 | 9906 |
| 2000 | 7221 |
| 2001 | 11892 |
| 2002 | 8349 |
| 2003 | 8699 |
| 2004 | 9765 |
| 2005 | 7983 |
| 2006 | 36393 |
| 2007 | 41944 |
| 2008 | 65329 |
| 2009 | |
| 2010 | 126844 |
| 2011 | 275270 |
| 2012 | 321537 |
| 2013 | 404678 |
| 2014 | 525161 |
| 2015 | 683204 |
| 2016 | 855803 |
| 2017 | 969139 |