年度 | 实际值 |
---|---|
1995 | 8.6 |
1996 | 7.9 |
1997 | 11.75 |
1998 | 6.4 |
1999 | 6 |
2000 | 5.6 |
2001 | 12.71 |
2002 | 11.75 |
2003 | 10.35 |
2004 | 9.54 |
2005 | 8 |
2006 | 7.08 |
2007 | 6.67 |
2008 | 6.65 |
2009 | |
2010 | 6.3 |
2011 | 6.3 |
2012 | 6.01 |
2013 | 5.68 |
2014 | 5.32 |
2015 | 5.08 |
2016 | 4.92 |
2017 | 4.52 |
2018 | 4.05 |