| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2010 | |
| 2 | 2009 | |
| 3 | 2008 | |
| 4 | 2007 | |
| 5 | 2006 | |
| 6 | 2005 | |
| 7 | 2004 | 68.88 |
| 8 | 2003 | 57.13 |
| 9 | 2002 | 62.22 |
| 10 | 2001 | 64.57 |
| 11 | 2000 | 63.68 |
| 12 | 1999 | 62.45 |
| 13 | 1998 | 61.04 |
| 14 | 1997 | 64.03 |
| 15 | 1996 | 65.01 |
| 16 | 1995 | 66.25 |
| 17 | 1994 | 61.67 |
| 18 | 1993 | 63.39 |
| 19 | 1992 | 46.85 |
| 20 | 1991 | 38.51 |
| 21 | 1990 | 36.63 |
| 22 | 1989 | 41.83 |
| 23 | 1988 | 39.88 |
| 24 | 1987 | 40.33 |
| 25 | 1986 | 36.84 |
| 26 | 1985 | 39.58 |
| 27 | 1984 | 42.50 |
| 28 | 1983 | 35.34 |
| 29 | 1982 | 37.83 |
| 30 | 1981 | 43.10 |
| 31 | 1980 | 42.87 |
| 32 | 1979 | 35.96 |
| 33 | 1978 | 48.46 |
| 34 | 1977 | 33.48 |
