年度 | 实际值 |
---|---|
1995 | 36.3 |
1996 | 46.9 |
1997 | 23.14 |
1998 | 41.4 |
1999 | 38.2 |
2000 | 32.9 |
2001 | 26.86 |
2002 | 12.63 |
2003 | 10.65 |
2004 | 21.17 |
2005 | 11.39 |
2006 | 10.63 |
2007 | 10.68 |
2008 | 9.64 |
2009 | |
2010 | 9.15 |
2011 | 9.01 |
2012 | 8.61 |
2013 | 8.61 |
2014 | 7.67 |
2015 | 7.69 |
2016 | 7.52 |
2017 | 7 |
2018 | 6.78 |