年度 | 实际值 |
---|---|
1992 | 38.8 |
1993 | |
1994 | |
1995 | 39 |
1996 | |
1997 | |
1998 | |
1999 | 40 |
2000 | 39.07 |
2001 | 39.1 |
2002 | 38.91 |
2003 | 38.82 |
2004 | 38.81 |
2005 | 35.53 |
2006 | 35.36 |
2007 | 35.41 |
2008 | 35.32 |
2009 | 35.45 |
2010 | 35.45 |
2011 | 35.08 |
2012 | 34.78 |
2013 | 34.65 |
2014 | 34.57 |
2015 | 34.38 |
2016 | 34 |
2017 | 34 |