年度 | 实际值 |
---|---|
1995 | 4.7 |
1996 | 4.5 |
1997 | 14.48 |
1998 | 3.5 |
1999 | 3.3 |
2000 | 2.9 |
2001 | 2.25 |
2002 | 2.02 |
2003 | 2.72 |
2004 | 2.39 |
2005 | 2.33 |
2006 | 2.05 |
2007 | 1.92 |
2008 | 1.74 |
2009 | |
2010 | 1.64 |
2011 | 1.59 |
2012 | 1.54 |
2013 | 1.42 |
2014 | 1.31 |
2015 | 1.25 |
2016 | 1.68 |
2017 | 1.5 |
2018 | 137 |