| 年度 | 实际值 |
|---|---|
| 1992 | 10739 |
| 1993 | 12696 |
| 1994 | 5062 |
| 1995 | 5629 |
| 1996 | 6304 |
| 1997 | 6468 |
| 1998 | 6406 |
| 1999 | 9448 |
| 2000 | 23520 |
| 2001 | 36219 |
| 2002 | 44592 |
| 2003 | 52999 |
| 2004 | 56113 |
| 2005 | 61391 |
| 2006 | 69653 |
| 2007 | 96343 |
| 2008 | 145201 |
| 2009 | 171959 |
| 2010 | 206054 |
| 2011 | 241635 |
| 2012 | 347447 |
| 2013 | 340281 |
| 2014 | 335290 |
| 2015 | 398671 |
| 2016 | 429730 |
| 2017 | 414471 |
| 2018 | 372201 |