| 年度 | 实际值 |
|---|---|
| 1989 | 106.1 |
| 1990 | 118.9 |
| 1991 | 103.2 |
| 1992 | 141.6 |
| 1993 | 55 |
| 1994 | 87.4 |
| 1995 | 108.3 |
| 1996 | 99.7 |
| 1997 | 113.4 |
| 1998 | 100.8 |
| 1999 | 92.1 |
| 2000 | 97.6 |
| 2001 | 348.3 |
| 2002 | 94 |
| 2003 | 101.7 |
| 2004 | 97.8 |
| 2005 | 94.5 |
| 2006 | 102.2 |
| 2007 | 100.6 |
| 2008 | 95.7 |
| 2009 | 101.9 |
| 2010 | 100 |
| 2011 | 97.5 |
| 2012 | 87.1 |
| 2013 | 103.6 |
| 2014 | 101.4 |
| 2015 | 73.9 |