年度 | 实际值 |
---|---|
1995 | 2.3 |
1996 | 2.5 |
1997 | 3.08 |
1998 | 2.9 |
1999 | 2.3 |
2000 | 2.2 |
2001 | 2.18 |
2002 | 2.03 |
2003 | 1.97 |
2004 | 1.92 |
2005 | 1.83 |
2006 | 1.73 |
2007 | 1.53 |
2008 | 1.46 |
2009 | |
2010 | 1.4 |
2011 | 1.33 |
2012 | 1.6 |
2013 | 1.63 |
2014 | 1.46 |
2015 | 1.41 |
2016 | 1.35 |
2017 | 1.03 |
2018 | 1.21 |