| 年度 | 实际值 |
|---|---|
| 1992 | 232 |
| 1993 | 236 |
| 1994 | 239 |
| 1995 | 245 |
| 1996 | 248 |
| 1997 | 4117 |
| 1998 | 5798 |
| 1999 | 5902 |
| 2000 | 6037 |
| 2001 | 6148 |
| 2002 | 422 |
| 2003 | 419.66 |
| 2004 | 425.87 |
| 2005 | 501.29 |
| 2006 | 431.05 |
| 2007 | 437.52 |
| 2008 | 455.89 |
| 2009 | |
| 2010 | 522.22 |
| 2011 | 545.8 |
| 2012 | 552.25 |
| 2013 | 557.36 |
| 2014 | 562.16 |
| 2015 | 570.57 |