| 年度 | 实际值 |
|---|---|
| 1978 | 128.6 |
| 1979 | 118 |
| 1980 | 132 |
| 1981 | 111.3 |
| 1982 | 104.9 |
| 1983 | 115.5 |
| 1984 | 124 |
| 1985 | 135.3 |
| 1986 | 114 |
| 1987 | 116.8 |
| 1988 | 116.3 |
| 1989 | 100.8 |
| 1990 | 105.2 |
| 1991 | 118.2 |
| 1992 | 125.2 |
| 1993 | 133.2 |
| 1994 | 127.5 |
| 1995 | 118.4 |
| 1996 | 115.5 |
| 1997 | 112.8 |
| 1998 | 110.8 |
| 1999 | 111.4 |
| 2000 | 111.7 |
| 2001 | 111 |
| 2002 | 113.4 |
| 2003 | 116.8 |
| 2004 | 116.4 |
| 2005 | 112.7 |
| 2006 | 114.3 |
| 2007 | 115.5 |
| 2008 | 109.4 |
| 2009 | 106.8 |
| 2010 | 112.3 |
| 2011 | 109.1 |
| 2012 | 107.3 |
| 2013 | 108.4 |
| 2014 | 107.2 |
| 2015 | 105.4 |