| 年度 | 实际值 |
|---|---|
| 1992 | 4733 |
| 1993 | |
| 1994 | |
| 1995 | 4417 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 13647 |
| 2000 | 16300 |
| 2001 | 25200 |
| 2002 | 29000 |
| 2003 | 35900 |
| 2004 | 43700 |
| 2005 | 48600 |
| 2006 | 61600 |
| 2007 | 74700 |
| 2008 | 92400 |
| 2009 | 129400 |
| 2010 | 160700 |
| 2011 | 182800 |
| 2012 | 204600 |
| 2013 | 237800 |
| 2014 | 273100 |
| 2015 | 355900 |
| 2016 | 421300 |