年度 | 实际值 |
---|---|
1995 | 25.3 |
1996 | 23.5 |
1997 | 18.78 |
1998 | 15.9 |
1999 | |
2000 | 13.2 |
2001 | 11.47 |
2002 | 10.46 |
2003 | 8.95 |
2004 | 8.12 |
2005 | 7.59 |
2006 | 6.65 |
2007 | 5.59 |
2008 | 4.92 |
2009 | |
2010 | 5.01 |
2011 | 5.24 |
2012 | 4.76 |
2013 | 4.84 |
2014 | 8.8 |
2015 | 8.35 |
2016 | 8.21 |
2017 | 7.23 |
2018 | 7.15 |