年度 | 实际值 |
---|---|
1995 | 13.7 |
1996 | 13.8 |
1997 | 10.3 |
1998 | 9.2 |
1999 | |
2000 | 13.5 |
2001 | 12.15 |
2002 | 11.3 |
2003 | 9.72 |
2004 | 8.88 |
2005 | 5.82 |
2006 | 5.77 |
2007 | 5.87 |
2008 | 5.11 |
2009 | |
2010 | 7.48 |
2011 | 6.59 |
2012 | 6.64 |
2013 | 7.13 |
2014 | 7.82 |
2015 | 7.84 |
2016 | 7.96 |
2017 | |
2018 | 6.51 |