年度 | 实际值 |
---|---|
1995 | 6.9 |
1996 | 2.3 |
1997 | 1.17 |
1998 | 1.6 |
1999 | 1.3 |
2000 | 1.1 |
2001 | .95 |
2002 | .92 |
2003 | 1.25 |
2004 | 1.34 |
2005 | .82 |
2006 | .94 |
2007 | .95 |
2008 | .76 |
2009 | |
2010 | .92 |
2011 | .58 |
2012 | .55 |
2013 | .49 |
2014 | .46 |
2015 | .37 |
2016 | 0.3 |
2017 | 0.26 |
2018 | 0.2 |