年度 | 实际值 |
---|---|
1995 | 17.3 |
1996 | 14.8 |
1997 | 15.02 |
1998 | 13.1 |
1999 | 14.6 |
2000 | 15.6 |
2001 | 16.33 |
2002 | 15.41 |
2003 | 12.85 |
2004 | 14.21 |
2005 | 10.72 |
2006 | 11.39 |
2007 | 10.06 |
2008 | 9.94 |
2009 | |
2010 | 8.76 |
2011 | 8.45 |
2012 | 8.29 |
2013 | 7.86 |
2014 | 7.63 |
2015 | 7.8 |
2016 | 7.7 |
2017 | |
2018 | 6.63 |