年度 | 实际值 |
---|---|
1995 | 32.3 |
1996 | 29.5 |
1997 | 30.07 |
1998 | 33.1 |
1999 | |
2000 | |
2001 | 39.8 |
2002 | 41.13 |
2003 | 40.96 |
2004 | 38.92 |
2005 | 34.14 |
2006 | 32.51 |
2007 | 32.66 |
2008 | 32.57 |
2009 | |
2010 | 34.34 |
2011 | 32.38 |
2012 | 30.89 |
2013 | 29.82 |
2014 | 30.75 |
2015 | 36.65 |
2016 | 38.41 |
2017 | |
2018 | 37 |