年度 | 实际值 |
---|---|
1995 | 5.5 |
1996 | 4.5 |
1997 | |
1998 | 5.7 |
1999 | 5.5 |
2000 | 3.7 |
2001 | |
2002 | 14.56 |
2003 | 13.89 |
2004 | |
2005 | 9.65 |
2006 | 9.02 |
2007 | 8.72 |
2008 | 8.34 |
2009 | |
2010 | 8.34 |
2011 | 8.44 |
2012 | 8.96 |
2013 | 8.46 |
2014 | 8 |
2015 | 7.26 |
2016 | 7.02 |
2017 | 6.8 |
2018 | 5.83 |