年度 | 实际值 |
---|---|
1995 | 38.4 |
1996 | 42.6 |
1997 | 49.74 |
1998 | 35.8 |
1999 | 33.5 |
2000 | 32.1 |
2001 | 28.38 |
2002 | 26.04 |
2003 | 22.75 |
2004 | 20.27 |
2005 | |
2006 | 16.21 |
2007 | 13.38 |
2008 | 12.84 |
2009 | |
2010 | 11.9 |
2011 | 9.7 |
2012 | 9.62 |
2013 | 9.22 |
2014 | 8.7 |
2015 | 8.79 |
2016 | 8.84 |
2017 | 8.64 |
2018 | 9.9 |