年度 | 实际值 |
---|---|
1995 | 42.4 |
1996 | 44.5 |
1997 | 42.56 |
1998 | 45.4 |
1999 | |
2000 | 43 |
2001 | 46.34 |
2002 | 48.14 |
2003 | 49.39 |
2004 | 47.59 |
2005 | 44.68 |
2006 | 44.01 |
2007 | 42.5 |
2008 | 40.17 |
2009 | |
2010 | 39.9 |
2011 | 37.34 |
2012 | 34.71 |
2013 | 31.86 |
2014 | 31.39 |
2015 | 32.32 |
2016 | 34.66 |
2017 | |
2018 | 33.84 |