| 年份 | 单位：% |
| 含“(E)”其对应值为系统预测，仅供参考。 | |
| 2025（E） | 购买后可见 » |
| 2024（E） | 购买后可见 » |
| 2023（E） | 购买后可见 » |
| 2022 | 购买后可见 » |
| 2021 | 购买后可见 » |
| 2020 | 购买后可见 » |
| 2019 | 购买后可见 » |
| 2018 | 购买后可见 » |
| 2017 | 购买后可见 » |
| 2016 | 购买后可见 » |
| 2015 | 购买后可见 » |
| 2014 | 购买后可见 » |
| 2013 | 购买后可见 » |
| 2012 | 91.73 |
| 2011 | 91.14 |
| 2010 | 66.80 |
| 2009 | 66.64 |
| 2008 | 66.48 |
| 2007 | 66.32 |
| 2006 | 66.16 |
| 2005 | 66.00 |
| 2004 | 65.84 |
| 2003 | 65.68 |
| 2002 | 65.52 |
| 2001 | 65.36 |
| 2000 | 65.20 |
| 1999 | 65.08 |
| 1998 | 64.96 |
| 1997 | 64.84 |
| 1996 | 64.72 |
| 1995 | 64.60 |
| 1994 | 64.30 |
| 1993 | 64.00 |
| 1992 | 63.70 |
| 1991 | 63.40 |
| 1990 | 63.10 |
| 1989 | 62.60 |
| 1988 | 62.10 |
| 1987 | 61.60 |
| 1986 | 61.10 |
| 1985 | 60.60 |
| 1984 | 60.40 |
| 1983 | 60.20 |
| 1982 | 60.00 |
| 1981 | 59.80 |
| 1980 | 59.60 |
| 1979 | 59.04 |
| 1978 | 58.48 |
| 1977 | 57.92 |
| 1976 | 57.36 |
| 1975 | 56.80 |
| 1974 | 56.08 |
| 1973 | 55.36 |
| 1972 | 54.64 |
| 1971 | 53.92 |
| 1970 | 53.20 |
| 1969 | 52.04 |
| 1968 | 50.88 |
| 1967 | 49.72 |
| 1966 | 48.56 |
| 1965 | 47.40 |
| 1964 | 46.54 |
| 1963 | 45.68 |
| 1962 | 44.82 |
| 1961 | 43.96 |
| 1960 | 43.10 |
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