| 年度 | 实际值 |
|---|---|
| 1992 | 1526 |
| 1993 | |
| 1994 | |
| 1995 | 35055 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 49777 |
| 2000 | 49815 |
| 2001 | 49500 |
| 2002 | 51387 |
| 2003 | 52344 |
| 2004 | 50132 |
| 2005 | 52106 |
| 2006 | 59909 |
| 2007 | 64410 |
| 2008 | 71199 |
| 2009 | 102543 |
| 2010 | 127446 |
| 2011 | 193285 |
| 2012 | 216254 |
| 2013 | 257684 |
| 2014 | 303072 |
| 2015 | 418151 |
| 2016 | 467218 |
| 2017 | 518917 |