年度 | 实际值 |
---|---|
1995 | 8.1 |
1996 | 8.3 |
1997 | 3.92 |
1998 | 8.6 |
1999 | 8.3 |
2000 | 7.5 |
2001 | 6.67 |
2002 | 6.66 |
2003 | 5.87 |
2004 | 5.91 |
2005 | 5.66 |
2006 | 4.9 |
2007 | 3.92 |
2008 | 4.85 |
2009 | |
2010 | 4.9 |
2011 | 4.51 |
2012 | 3.97 |
2013 | 3.83 |
2014 | 3.84 |
2015 | 3.52 |
2016 | 3.28 |
2017 | 3.02 |
2018 | 3.17 |