| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 6.89 |
| 8 | 2014 | 7.09 |
| 9 | 2013 | 7.31 |
| 10 | 2012 | 6.50 |
| 11 | 2011 | 6.20 |
| 12 | 2010 | 6.90 |
| 13 | 2009 | 6.30 |
| 14 | 2008 | 5.66 |
| 15 | 2007 | 6.68 |
| 16 | 2006 | 6.87 |
| 17 | 2005 | 9.27 |
| 18 | 2004 | 6.56 |
| 19 | 2003 | 6.67 |
| 20 | 2002 | 9.67 |
| 21 | 2001 | 6.63 |
| 22 | 2000 | 6.69 |
| 23 | 1999 | 7.02 |
| 24 | 1998 | 6.94 |
| 25 | 1993 | 7.37 |
| 26 | 1992 | 7.64 |
| 27 | 1991 | 7.73 |
| 28 | 1990 | 7.58 |
| 29 | 1989 | 8.12 |
| 30 | 1988 | 8.31 |
| 31 | 1987 | 8.18 |
