年度 | 实际值 |
---|---|
1995 | 37.9 |
1996 | 37.4 |
1997 | 37.1 |
1998 | 37 |
1999 | 36.8 |
2000 | 38 |
2001 | 37.82 |
2002 | 38.48 |
2003 | 41.04 |
2004 | 43.5 |
2005 | 40.39 |
2006 | 41.41 |
2007 | 42.79 |
2008 | 42.95 |
2009 | |
2010 | 44.78 |
2011 | 46.34 |
2012 | 45.62 |
2013 | 43.06 |
2014 | 26.16 |
2015 | 22.77 |
2016 | 22.09 |
2017 | |
2018 | 20.53 |