| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2011 |
|
| 2 |
2010 |
|
| 3 |
2009 |
|
| 4 |
2008 |
|
| 5 |
2007 |
|
| 6 |
2006 |
|
| 7 |
2005 |
72.80 |
| 8 |
2004 |
77.73 |
| 9 |
2003 |
82.80 |
| 10 |
2002 |
81.15 |
| 11 |
2001 |
71.47 |
| 12 |
2000 |
62.29 |
| 13 |
1999 |
57.83 |
| 14 |
1998 |
52.83 |
| 15 |
1997 |
50.68 |
| 16 |
1996 |
50.53 |
| 17 |
1995 |
55.49 |
| 18 |
1994 |
57.34 |
| 19 |
1993 |
62.50 |
| 20 |
1992 |
53.39 |
| 21 |
1991 |
53.32 |
| 22 |
1990 |
54.70 |
| 23 |
1989 |
55.71 |
| 24 |
1988 |
51.54 |
| 25 |
1987 |
61.55 |
| 26 |
1986 |
70.50 |
| 27 |
1985 |
75.69 |
| 28 |
1984 |
69.35 |
| 29 |
1983 |
56.92 |
| 30 |
1982 |
48.13 |
| 31 |
1981 |
41.79 |
| 32 |
1980 |
46.28 |
| 33 |
1979 |
45.30 |
| 34 |
1978 |
46.67 |
| 35 |
1977 |
43.98 |
| 36 |
1976 |
37.32 |
| 37 |
1975 |
36.32 |
| 38 |
1974 |
37.48 |
| 39 |
1973 |
41.31 |
| 40 |
1972 |
36.69 |
| 41 |
1971 |
33.47 |
| 42 |
1970 |
36.53 |
| 43 |
1969 |
31.87 |
| 44 |
1968 |
32.69 |
| 45 |
1967 |
30.46 |
| 46 |
1966 |
28.11 |
| 47 |
1965 |
25.57 |
| 48 |
1964 |
22.55 |
| 49 |
1963 |
23.83 |
| 50 |
1962 |
26.16 |
| 51 |
1961 |
27.89 |
| 52 |
1960 |
29.90 |
