| 年度 | 实际值 |
|---|---|
| 1992 | 9.8 |
| 1993 | 10.53 |
| 1994 | 11.27 |
| 1995 | 12.05 |
| 1996 | 12.78 |
| 1997 | 13.69 |
| 1998 | 14.51 |
| 1999 | 15.15 |
| 2000 | 159149 |
| 2001 | 170135 |
| 2002 | 48.9505 |
| 2003 | 38.8026 |
| 2004 | 39.6304 |
| 2005 | 39.7965 |
| 2006 | 40.23 |
| 2007 | 40.71 |
| 2008 | 41.12 |
| 2009 | 41.3583 |
| 2010 | 43.2878 |
| 2011 | |
| 2012 | 43.87 |
| 2013 | 44.9 |
| 2014 | 45.73 |
| 2015 | 96.31 |
| 2016 | 99.77 |