| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2013 | |
| 2 | 2012 | |
| 3 | 2011 | |
| 4 | 2010 | |
| 5 | 2009 | |
| 6 | 2008 | |
| 7 | 2007 | |
| 8 | 2006 | |
| 9 | 2005 | |
| 10 | 2004 | |
| 11 | 2003 | 0.49 |
| 12 | 2002 | 0.58 |
| 13 | 2001 | 0.72 |
| 14 | 2000 | 0.79 |
| 15 | 1999 | 1.06 |
| 16 | 1998 | 2.59 |
| 17 | 1997 | 3.84 |
| 18 | 1996 | 4.19 |
| 19 | 1995 | 5.83 |
| 20 | 1994 | 7.52 |
| 21 | 1993 | 8.11 |
| 22 | 1992 | 8.68 |
