年度 | 实际值 |
---|---|
1995 | 3.7 |
1996 | 3.7 |
1997 | 6.87 |
1998 | 3.3 |
1999 | 2.9 |
2000 | 2 |
2001 | 1.93 |
2002 | 1.92 |
2003 | 1.69 |
2004 | 1.55 |
2005 | 1.35 |
2006 | 1.25 |
2007 | 1.31 |
2008 | 1.2 |
2009 | |
2010 | 1.35 |
2011 | 1.41 |
2012 | 1.36 |
2013 | 1.71 |
2014 | 1.41 |
2015 | 1.42 |
2016 | 2.1 |
2017 | 2 |
2018 | 2.42 |