年度 | 实际值 |
---|---|
1995 | 29.6 |
1996 | 28 |
1997 | |
1998 | 36.4 |
1999 | 34.8 |
2000 | 32.5 |
2001 | 29.42 |
2002 | 25.6 |
2003 | 22.13 |
2004 | 20.31 |
2005 | 18.72 |
2006 | 16.5 |
2007 | 15.07 |
2008 | 14.93 |
2009 | |
2010 | 13.66 |
2011 | 12.68 |
2012 | 12.01 |
2013 | 11.89 |
2014 | 12.09 |
2015 | 11.88 |
2016 | 11.83 |
2017 | |
2018 | 9.86 |