年度 | 实际值 |
---|---|
1995 | 22.7 |
1996 | 22.4 |
1997 | 21.4 |
1998 | 22.6 |
1999 | 28.2 |
2000 | 29.2 |
2001 | 29.36 |
2002 | 31.8 |
2003 | 32.25 |
2004 | 32.56 |
2005 | 39.17 |
2006 | 38.22 |
2007 | 38.58 |
2008 | 37.5 |
2009 | |
2010 | 32.85 |
2011 | 29.25 |
2012 | 28.64 |
2013 | 29 |
2014 | 29.5 |
2015 | 31.25 |
2016 | 32.94 |
2017 | |
2018 | 38.91 |