| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2018 | |
| 2 | 2017 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | 1.62 |
| 8 | 2011 | 2.24 |
| 9 | 2010 | 2.21 |
| 10 | 2009 | 3.05 |
| 11 | 2008 | 1.59 |
| 12 | 2007 | 4.29 |
| 13 | 2006 | 3.80 |
| 14 | 2005 | 4.17 |
| 15 | 2004 | 7.64 |
| 16 | 2003 | 9.92 |
| 17 | 2002 | 15.26 |
| 18 | 2001 | 8.98 |
| 19 | 2000 | 18.88 |
| 20 | 1999 | 14.96 |
| 21 | 1998 | 8.54 |
| 22 | 1997 | 11.79 |
| 23 | 1996 | 11.15 |
| 24 | 1995 | 8.52 |
| 25 | 1994 | 12.97 |
| 26 | 1993 | 22.25 |
| 27 | 1992 | 21.90 |
| 28 | 1991 | 15.89 |
| 29 | 1990 | 20.15 |
| 30 | 1989 | 16.58 |
