年度 | 实际值 |
---|---|
1992 | 60.9 |
1993 | |
1994 | |
1995 | 60 |
1996 | |
1997 | |
1998 | |
1999 | 60 |
2000 | 12.69 |
2001 | 31.3 |
2002 | 31.15 |
2003 | 30.94 |
2004 | 30.18 |
2005 | 30.08 |
2006 | 30.13 |
2007 | 30.17 |
2008 | 30.14 |
2009 | 30.16 |
2010 | 30.3 |
2011 | 30.46 |
2012 | 30.45 |
2013 | 30.5 |
2014 | 30.6 |
2015 | 29.39 |