年度 | 实际值 |
---|---|
1995 | 23 |
1996 | 22.4 |
1997 | 26.22 |
1998 | 27.4 |
1999 | |
2000 | 32.1 |
2001 | 35.37 |
2002 | 36.69 |
2003 | 36.2 |
2004 | 37.16 |
2005 | 36.58 |
2006 | 37.35 |
2007 | 35.62 |
2008 | 34.4 |
2009 | |
2010 | 37.13 |
2011 | 34.39 |
2012 | 33.29 |
2013 | 34.97 |
2014 | 36.3 |
2015 | 36.61 |
2016 | 36.87 |
2017 | |
2018 | 35.8 |