年度 | 实际值 |
---|---|
1995 | 38.4 |
1996 | 38 |
1997 | 38.77 |
1998 | 38.2 |
1999 | 39.1 |
2000 | 40.4 |
2001 | 41.21 |
2002 | 41 |
2003 | 41.36 |
2004 | 40.6 |
2005 | 38.18 |
2006 | 37.22 |
2007 | 36.01 |
2008 | 34.34 |
2009 | |
2010 | 37.01 |
2011 | 37.97 |
2012 | 40.95 |
2013 | 41.41 |
2014 | 42.88 |
2015 | 43.79 |
2016 | 44.61 |
2017 | |
2018 | 44.5 |