| 年度 | 实际值 |
|---|---|
| 1992 | 4422 |
| 1993 | |
| 1994 | |
| 1995 | 3808 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 7270 |
| 2000 | 9600 |
| 2001 | 17700 |
| 2002 | 18700 |
| 2003 | 23300 |
| 2004 | 27600 |
| 2005 | 37300 |
| 2006 | 45200 |
| 2007 | 56900 |
| 2008 | 67400 |
| 2009 | 72100 |
| 2010 | 90100 |
| 2011 | 105800 |
| 2012 | 115400 |
| 2013 | 124600 |
| 2014 | 134000 |
| 2015 | 151600 |
| 2016 | 166100 |