年度 | 实际值 |
---|---|
1995 | 14.6 |
1996 | 13.4 |
1997 | 11.98 |
1998 | 11.2 |
1999 | 10.4 |
2000 | 9.6 |
2001 | 8.83 |
2002 | 8.4 |
2003 | 8.19 |
2004 | 7.69 |
2005 | 7.68 |
2006 | 7.09 |
2007 | 7.07 |
2008 | 6.93 |
2009 | |
2010 | 5.14 |
2011 | 4.78 |
2012 | 4.28 |
2013 | 3.88 |
2014 | 3.55 |
2015 | 3.45 |
2016 | 3.9 |
2017 | |
2018 | 3.41 |