年度 | 实际值 |
---|---|
1995 | 2.1 |
1996 | 2.5 |
1997 | 54.33 |
1998 | 2.6 |
1999 | 2.5 |
2000 | 2.4 |
2001 | 2.47 |
2002 | 2.44 |
2003 | 9.12 |
2004 | 8.43 |
2005 | 7.66 |
2006 | 7.41 |
2007 | 6.81 |
2008 | 7.08 |
2009 | |
2010 | 6.96 |
2011 | 6.69 |
2012 | 6.83 |
2013 | 6.42 |
2014 | 5.23 |
2015 | 4.91 |
2016 | 5.08 |
2017 | 4.49 |
2018 | 4.18 |