| 年度 | 实际值 |
|---|---|
| 1992 | 1311 |
| 1993 | |
| 1994 | |
| 1995 | 13673 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 19738 |
| 2000 | 20113 |
| 2001 | 20931 |
| 2002 | 21579 |
| 2003 | 21804 |
| 2004 | 20968 |
| 2005 | 25135 |
| 2006 | 21270 |
| 2007 | 29413 |
| 2008 | 49463 |
| 2009 | 63226 |
| 2010 | 129286 |
| 2011 | 182700 |
| 2012 | 196000 |
| 2013 | 187837 |
| 2014 | 322290 |
| 2015 | 332322 |
| 2016 | 359690 |
| 2017 | 429582 |