| 年度 | 实际值 |
|---|---|
| 1992 | 912 |
| 1993 | 917 |
| 1994 | 919 |
| 1995 | 923 |
| 1996 | 926 |
| 1997 | 930 |
| 1998 | 929 |
| 1999 | 932 |
| 2000 | 934.65 |
| 2001 | 937.42 |
| 2002 | 916.07 |
| 2003 | 924.27 |
| 2004 | 934.056868 |
| 2005 | 946 |
| 2006 | 956.220235608656 |
| 2007 | 964.442801314226 |
| 2008 | 969.586333920827 |
| 2009 | 972.61498576095 |
| 2010 | 1008.34233844824 |
| 2011 | 1011.37497298466 |
| 2012 | 1397.33870108493 |
| 2013 | 1401 |
| 2014 | 1405 |
| 2015 | 1407 |