年度 | 实际值 |
---|---|
1992 | 29.5 |
1993 | |
1994 | |
1995 | 30.3 |
1996 | |
1997 | |
1998 | |
1999 | 32.8 |
2000 | 33.6 |
2001 | 34 |
2002 | 34.3 |
2003 | 35 |
2004 | 35 |
2005 | 36 |
2006 | 36 |
2007 | 37 |
2008 | 38 |
2009 | 38 |
2010 | 40 |
2011 | 40.85 |
2012 | 41.38 |
2013 | 41.85 |
2014 | 42.28 |
2015 | 41.07 |
2016 | 42 |
2017 | 42 |