年度 | 实际值 |
---|---|
1995 | 21.8 |
1996 | 25.6 |
1997 | 27.93 |
1998 | 30 |
1999 | 33.7 |
2000 | 34 |
2001 | 34.3 |
2002 | 35.09 |
2003 | 34.58 |
2004 | 33.71 |
2005 | 38.59 |
2006 | 38.74 |
2007 | 37.31 |
2008 | 35.43 |
2009 | |
2010 | 31.76 |
2011 | 29.88 |
2012 | 29.4 |
2013 | 29.97 |
2014 | 30.98 |
2015 | 32.98 |
2016 | 34.08 |
2017 | |
2018 | 36.68 |