| 年度 | 实际值 |
|---|---|
| 1993 | 32000 |
| 1994 | 34100 |
| 1995 | 33700 |
| 1996 | 40000 |
| 1997 | 37000 |
| 1998 | 37100 |
| 1999 | |
| 2000 | 38475 |
| 2001 | 37995 |
| 2002 | 9391 |
| 2003 | 38415 |
| 2004 | 44380 |
| 2005 | 45492 |
| 2006 | 46700 |
| 2007 | 44985 |
| 2008 | 45884 |
| 2009 | 46523 |
| 2010 | 46411 |
| 2011 | 46298 |
| 2012 | 47711 |
| 2013 | 49000 |
| 2014 | 51172 |
| 2015 | 51631 |
| 2016 | 54213 |
| 2017 | 56679 |