年度 | 实际值 |
---|---|
1995 | 38.5 |
1996 | 35.4 |
1997 | 35.03 |
1998 | 36.8 |
1999 | |
2000 | 29.8 |
2001 | 31.31 |
2002 | 30.28 |
2003 | 29.25 |
2004 | 27.7 |
2005 | 31.18 |
2006 | 32.05 |
2007 | 31.59 |
2008 | 33.05 |
2009 | |
2010 | 33.22 |
2011 | 32.9 |
2012 | 32.49 |
2013 | 32.77 |
2014 | 33.56 |
2015 | 35.24 |
2016 | 36.75 |
2017 | |
2018 | 37.41 |