年度 | 实际值 |
---|---|
1995 | 41.8 |
1996 | 40.9 |
1997 | 37.9 |
1998 | 34 |
1999 | 31.1 |
2000 | 29.9 |
2001 | 27.61 |
2002 | 25.66 |
2003 | 23.78 |
2004 | 25.19 |
2005 | 26.34 |
2006 | 24.52 |
2007 | 24.1 |
2008 | 22.79 |
2009 | |
2010 | 18.78 |
2011 | 16.27 |
2012 | 14.84 |
2013 | 14.3 |
2014 | 13.44 |
2015 | |
2016 | 12.97 |
2017 | |
2018 | 10.25 |