年度 | 实际值 |
---|---|
1995 | 14.2 |
1996 | 14.6 |
1997 | 14.23 |
1998 | 13 |
1999 | 12.1 |
2000 | 11.3 |
2001 | 10.76 |
2002 | 9.96 |
2003 | 8.96 |
2004 | 9.22 |
2005 | 7.5 |
2006 | 6.85 |
2007 | 6.34 |
2008 | 5.74 |
2009 | |
2010 | 4.44 |
2011 | 4.33 |
2012 | 4.25 |
2013 | 4.12 |
2014 | 3.99 |
2015 | 4.02 |
2016 | 3.96 |
2017 | |
2018 | 2.9 |