年度 | 实际值 |
---|---|
1995 | 11.6 |
1996 | 9.8 |
1997 | 28.7 |
1998 | 27 |
1999 | 25.6 |
2000 | 23.6 |
2001 | 21.97 |
2002 | 20.45 |
2003 | 19.38 |
2004 | 20.45 |
2005 | 21.18 |
2006 | 19.56 |
2007 | 20.31 |
2008 | 19.27 |
2009 | |
2010 | 15.37 |
2011 | 14.96 |
2012 | 14.64 |
2013 | 14.79 |
2014 | 14.33 |
2015 | 14.18 |
2016 | 14.03 |
2017 | |
2018 | 12.27 |