年度 | 实际值 |
---|---|
1995 | 15.7 |
1996 | 19 |
1997 | 24.41 |
1998 | 16.9 |
1999 | |
2000 | |
2001 | 14.13 |
2002 | 13.52 |
2003 | 14.4 |
2004 | 13.89 |
2005 | 14.44 |
2006 | 13.58 |
2007 | 13.68 |
2008 | 14.01 |
2009 | |
2010 | 12.42 |
2011 | 11.07 |
2012 | 11.93 |
2013 | 12.26 |
2014 | 12.27 |
2015 | 11.9 |
2016 | 11.62 |
2017 | 11.13 |
2018 | 10.66 |