| 年度 | 实际值 |
|---|---|
| 1992 | 527.97 |
| 1993 | 529.99 |
| 1994 | 531.18 |
| 1995 | 534.21 |
| 1996 | 908.33 |
| 1997 | 914.91 |
| 1998 | 921.83 |
| 1999 | 927.09 |
| 2000 | 934.64 |
| 2001 | 941.1 |
| 2002 | 948.27 |
| 2003 | 954.31 |
| 2004 | 970.23 |
| 2005 | 974.84 |
| 2006 | 980.4 |
| 2007 | 987.32 |
| 2008 | 989.86 |
| 2009 | |
| 2010 | 992.02 |
| 2011 | 993.3 |
| 2012 | 993.5 |
| 2013 | 995.2 |
| 2014 | |
| 2015 | 961.37 |
| 2016 | 962 |
| 2017 | 955 |
| 2018 | 952 |
| 2019 | 951.3 |