| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 99.97 |
| 8 | 2013 | 99.87 |
| 9 | 2012 | 99.93 |
| 10 | 2011 | 99.91 |
| 11 | 2010 | 99.94 |
| 12 | 2009 | 99.92 |
| 13 | 2008 | 99.91 |
| 14 | 2007 | 99.94 |
| 15 | 2006 | 99.86 |
| 16 | 2005 | 99.65 |
| 17 | 2004 | 99.81 |
| 18 | 2003 | 99.77 |
| 19 | 2002 | 99.87 |
| 20 | 2001 | 99.55 |
| 21 | 2000 | 99.84 |
| 22 | 1999 | 99.84 |
| 23 | 1998 | 99.70 |
| 24 | 1997 | 99.60 |
| 25 | 1996 | 99.50 |
| 26 | 1995 | 99.17 |
| 27 | 1994 | 99.00 |
| 28 | 1993 | 98.90 |
| 29 | 1992 | 98.70 |
| 30 | 1991 | 98.40 |
| 31 | 1990 | 98.78 |
| 32 | 1989 | 98.00 |
| 33 | 1988 | 96.50 |
| 34 | 1987 | 97.50 |
| 35 | 1986 | 97.30 |
| 36 | 1985 | 96.90 |
| 37 | 1984 | 95.00 |
| 38 | 1983 | 94.80 |
| 39 | 1982 | 93.30 |
| 40 | 1981 | 93.50 |
| 41 | 1980 | 94.90 |
| 42 | 1979 | 95.50 |
| 43 | 1978 | 96.50 |
| 44 | 1976 | 97.50 |
| 45 | 1975 | 97.50 |
| 46 | 1973 | 91.40 |
| 47 | 1972 | 89.60 |
| 48 | 1970 | 86.50 |
| 49 | 1965 | 88.80 |
| 50 | 1964 | 62.70 |
| 51 | 1963 | 56.90 |
| 52 | 1962 | 58.40 |
| 53 | 1961 | 59.50 |
| 54 | 1960 | 78.70 |
| 55 | 1959 | 92.90 |
| 56 | 1958 | 77.00 |
| 57 | 1957 | 62.40 |
| 58 | 1956 | 65.10 |
| 59 | 1955 | 59.70 |
| 60 | 1954 | 58.30 |
| 61 | 1953 | 55.10 |
| 62 | 1952 | 55.80 |
| 63 | 1951 | 44.50 |
| 64 | 1950 | 27.90 |
| 65 | 1949 | 22.00 |
