年度 | 实际值 |
---|---|
1995 | 12.7 |
1996 | 12.2 |
1997 | 24.22 |
1998 | 12.9 |
1999 | 15.5 |
2000 | 12.8 |
2001 | 11.07 |
2002 | 9.46 |
2003 | 10.45 |
2004 | 9.48 |
2005 | 7.21 |
2006 | 8 |
2007 | 8 |
2008 | 7.74 |
2009 | |
2010 | 6.62 |
2011 | 5.39 |
2012 | 4.99 |
2013 | 5.12 |
2014 | 5.22 |
2015 | 5.24 |
2016 | 4.88 |
2017 | 5.05 |
2018 | 5 |