年度 | 实际值 |
---|---|
1995 | 38.6 |
1996 | 41.1 |
1997 | 45.66 |
1998 | 47.1 |
1999 | |
2000 | |
2001 | |
2002 | 35.66 |
2003 | 31.03 |
2004 | 27.18 |
2005 | 29.14 |
2006 | 27.2 |
2007 | 27.48 |
2008 | 26.56 |
2009 | |
2010 | 27.26 |
2011 | 26.38 |
2012 | 27 |
2013 | 27.64 |
2014 | 29.33 |
2015 | 30.54 |
2016 | 30.27 |
2017 | |
2018 | 35.53 |