年度 | 实际值 |
---|---|
1992 | 3.7 |
1993 | 3.6 |
1994 | |
1995 | 2.65 |
1996 | 4.58 |
1997 | 2.62 |
1998 | 5.83 |
1999 | 3.57 |
2000 | 3.49 |
2001 | 2.16 |
2002 | 1.6 |
2003 | 1.24 |
2004 | 2.28 |
2005 | 2.18 |
2006 | 2.25 |
2007 | 3.07 |
2008 | 2.6 |
2009 | |
2010 | 2.4 |
2011 | 2.8 |
2012 | 3.1 |
2013 | 2.6 |
2014 | 3.9 |
2015 | 3.23 |
2016 | 4.81 |
2017 | 4.01 |
2018 | 2.86 |