年度 | 实际值 |
---|---|
1995 | 35.2 |
1996 | 31 |
1997 | 31.54 |
1998 | 32.9 |
1999 | 33.1 |
2000 | 34.2 |
2001 | 36.7 |
2002 | 36.39 |
2003 | 35.67 |
2004 | 34.17 |
2005 | 34.06 |
2006 | 33.05 |
2007 | 32.1 |
2008 | 31.25 |
2009 | |
2010 | 33.74 |
2011 | 31.15 |
2012 | 31.16 |
2013 | 34.19 |
2014 | 34.37 |
2015 | 35.84 |
2016 | 37.2 |
2017 | |
2018 | 41.86 |