| 年度 | 实际值 |
|---|---|
| 1992 | 20.78 |
| 1993 | 21.77 |
| 1994 | 22.73 |
| 1995 | 23.72 |
| 1996 | 24.92 |
| 1997 | 27.42 |
| 1998 | 30.5 |
| 1999 | 32.23 |
| 2000 | 337805 |
| 2001 | 355954 |
| 2002 | 63.0078 |
| 2003 | 57.3958 |
| 2004 | 58.4389 |
| 2005 | 58.7543 |
| 2006 | 59.32 |
| 2007 | 60.11 |
| 2008 | 60.82 |
| 2009 | 61.1156 |
| 2010 | 63.2803 |
| 2011 | 63.5836 |
| 2012 | 64.07 |
| 2013 | 66.64 |
| 2014 | 67.72 |
| 2015 | 131.18 |
| 2016 | 142.64 |