年度 | 实际值 |
---|---|
1995 | 1.5 |
1996 | 1.6 |
1997 | 1.47 |
1998 | 1.4 |
1999 | 1.3 |
2000 | 1.2 |
2001 | 1.58 |
2002 | 1.44 |
2003 | 1.28 |
2004 | 1.16 |
2005 | 1.14 |
2006 | 1 |
2007 | |
2008 | .63 |
2009 | |
2010 | .64 |
2011 | .43 |
2012 | .53 |
2013 | .56 |
2014 | 4.63 |
2015 | 4.65 |
2016 | 4.19 |
2017 | 2.17 |
2018 | 2.26 |