年度 | 实际值 |
---|---|
1995 | 13.3 |
1996 | 14.3 |
1997 | 13.75 |
1998 | 14.4 |
1999 | 13.7 |
2000 | 7.4 |
2001 | 10.73 |
2002 | 11.62 |
2003 | 11.15 |
2004 | 11.34 |
2005 | 10.62 |
2006 | 9.96 |
2007 | 10.75 |
2008 | 10.21 |
2009 | |
2010 | 8.8 |
2011 | 8.42 |
2012 | 8.71 |
2013 | 8.48 |
2014 | 8.79 |
2015 | 9.64 |
2016 | 12.05 |
2017 | |
2018 | 7.95 |