| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2010 | |
| 2 | 2009 | |
| 3 | 2008 | |
| 4 | 2007 | |
| 5 | 2006 | |
| 6 | 2005 | |
| 7 | 2004 | 1.50 |
| 8 | 2003 | 5.60 |
| 9 | 2002 | 8.10 |
| 10 | 2001 | 9.40 |
| 11 | 2000 | 10.00 |
| 12 | 1999 | 10.30 |
| 13 | 1998 | 11.00 |
| 14 | 1997 | 11.10 |
| 15 | 1996 | 10.70 |
| 16 | 1995 | 8.60 |
| 17 | 1994 | 8.30 |
| 18 | 1993 | 9.30 |
| 19 | 1992 | 9.00 |
| 20 | 1991 | 19.50 |
| 21 | 1990 | 20.10 |
| 22 | 1989 | 20.30 |
| 23 | 1988 | 17.50 |
| 24 | 1987 | 18.80 |
| 25 | 1986 | 23.50 |
| 26 | 1985 | 30.10 |
| 27 | 1984 | 31.70 |
| 28 | 1983 | 27.50 |
| 29 | 1982 | 20.50 |
| 30 | 1981 | 21.70 |
| 31 | 1980 | 16.40 |
| 32 | 1979 | 17.00 |
| 33 | 1978 | 9.50 |
