| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2018 | |
| 2 | 2017 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | 5.79 |
| 8 | 2011 | 5.51 |
| 9 | 2010 | 4.09 |
| 10 | 2009 | 6.56 |
| 11 | 2008 | 6.06 |
| 12 | 2007 | 5.89 |
| 13 | 2006 | 6.27 |
| 14 | 2005 | 6.20 |
| 15 | 2004 | 7.01 |
| 16 | 2003 | 6.75 |
| 17 | 2002 | 6.89 |
| 18 | 2001 | 6.85 |
| 19 | 2000 | 6.61 |
| 20 | 1999 | 5.58 |
| 21 | 1998 | 5.83 |
| 22 | 1997 | 6.00 |
| 23 | 1996 | 6.45 |
| 24 | 1995 | 5.85 |
| 25 | 1994 | 5.94 |
| 26 | 1993 | 6.07 |
| 27 | 1992 | 5.64 |
| 28 | 1991 | 5.18 |
| 29 | 1990 | 6.08 |
| 30 | 1989 | 5.56 |
