年度 | 实际值 |
---|---|
1995 | 11.4 |
1996 | 10 |
1997 | 22.83 |
1998 | 8.2 |
1999 | 7.7 |
2000 | 7.9 |
2001 | 7.37 |
2002 | 7.44 |
2003 | 6.41 |
2004 | 6.04 |
2005 | 3.29 |
2006 | 3.37 |
2007 | 2.51 |
2008 | 1.58 |
2009 | |
2010 | 1.38 |
2011 | 1.26 |
2012 | 1.15 |
2013 | 6.14 |
2014 | 5.45 |
2015 | 5.42 |
2016 | 5.66 |
2017 | 4.74 |
2018 | 4.58 |