年度 | 实际值 |
---|---|
1995 | 5.1 |
1996 | 6 |
1997 | 5.58 |
1998 | 3.5 |
1999 | 3.9 |
2000 | 1.8 |
2001 | 2.07 |
2002 | 2.92 |
2003 | 3.04 |
2004 | 3.23 |
2005 | 3.03 |
2006 | 3.13 |
2007 | 3.03 |
2008 | 3.12 |
2009 | |
2010 | 3.28 |
2011 | 3.59 |
2012 | 3.85 |
2013 | 4.2 |
2014 | 4.7 |
2015 | 6.53 |
2016 | 7.17 |
2017 | |
2018 | 7.13 |