年度 | 实际值 |
---|---|
1995 | .5 |
1996 | .5 |
1997 | 2 |
1998 | .4 |
1999 | .4 |
2000 | .3 |
2001 | .29 |
2002 | 6.13 |
2003 | 5.63 |
2004 | 4.97 |
2005 | 3.18 |
2006 | 2.58 |
2007 | 2.28 |
2008 | 2.2 |
2009 | |
2010 | 1.99 |
2011 | 1.8 |
2012 | 1.97 |
2013 | 1.98 |
2014 | 1.8 |
2015 | 1.7 |
2016 | 1.68 |
2017 | 1.42 |
2018 | 1.45 |