年度 | 实际值 |
---|---|
1995 | 21.2 |
1996 | 20.5 |
1997 | 18.05 |
1998 | 17.8 |
1999 | 15.6 |
2000 | 18.9 |
2001 | 11.2 |
2002 | 14.13 |
2003 | 14.55 |
2004 | 12.83 |
2005 | 10.19 |
2006 | 9.03 |
2007 | 8.77 |
2008 | 6.6 |
2009 | |
2010 | 6.05 |
2011 | 5.31 |
2012 | 5.06 |
2013 | 6.01 |
2014 | 6.12 |
2015 | 6.16 |
2016 | 6.13 |
2017 | |
2018 | 5.43 |