年度 | 实际值 |
---|---|
1995 | 8.8 |
1996 | 9.3 |
1997 | 9.18 |
1998 | 7.5 |
1999 | 6.5 |
2000 | 6.8 |
2001 | 6.28 |
2002 | 5.82 |
2003 | 4.93 |
2004 | 4.67 |
2005 | 3.57 |
2006 | 2.9 |
2007 | 2.67 |
2008 | 2.59 |
2009 | |
2010 | 2.07 |
2011 | 1.9 |
2012 | 1.9 |
2013 | 1.76 |
2014 | 1.76 |
2015 | 5.18 |
2016 | 5.12 |
2017 | |
2018 | 4.09 |