年度 | 实际值 |
---|---|
1995 | 19 |
1996 | 14.7 |
1997 | 30.59 |
1998 | 15.5 |
1999 | 16.2 |
2000 | 14.7 |
2001 | 12.62 |
2002 | 12.14 |
2003 | 9.54 |
2004 | 10.66 |
2005 | 10.49 |
2006 | 10.38 |
2007 | 9.25 |
2008 | 9.38 |
2009 | |
2010 | 9.67 |
2011 | 7.5 |
2012 | 7.23 |
2013 | 7.16 |
2014 | 6.7 |
2015 | 5.84 |
2016 | 5.41 |
2017 | 4.61 |
2018 | 3.88 |