年度 | 实际值 |
---|---|
1995 | 24.8 |
1996 | 24.5 |
1997 | 32.3 |
1998 | 29.3 |
1999 | 30.8 |
2000 | 27.4 |
2001 | 26.68 |
2002 | 25.91 |
2003 | 24.41 |
2004 | 20.1 |
2005 | 15.1 |
2006 | 13.65 |
2007 | 12.14 |
2008 | 11.99 |
2009 | |
2010 | 20.19 |
2011 | 18.97 |
2012 | 18.81 |
2013 | 19.84 |
2014 | 21.9 |
2015 | 28.78 |
2016 | 36.11 |
2017 | |
2018 | 31.74 |