| 年份 | 政策 数量 | 累计数量 | 年份 | 政策数量 | 累计数量 | 年份 | 政策数量 | 累计数量 | 年份 | 政策数量 | 累计数量 |
| 1949 | 0 | 0 | 1968 | 0 | 3 | 1987 | 0 | 3 | 2006 | 2 | 31 |
| 1950 | 0 | 0 | 1969 | 0 | 3 | 1988 | 2 | 5 | 2007 | 3 | 34 |
| 1951 | 1 | 1 | 1970 | 0 | 3 | 1989 | 1 | 6 | 2008 | 2 | 36 |
| 1952 | 0 | 1 | 1971 | 0 | 3 | 1990 | 1 | 7 | 2009 | 1 | 37 |
| 1953 | 0 | 1 | 1972 | 0 | 3 | 1991 | 3 | 10 | 2010 | 6 | 43 |
| 1954 | 1 | 2 | 1973 | 0 | 3 | 1992 | 4 | 14 | 2011 | 2 | 45 |
| 1955 | 0 | 2 | 1974 | 0 | 3 | 1993 | 1 | 15 | 2012 | 5 | 50 |
| 1956 | 0 | 2 | 1975 | 0 | 3 | 1994 | 1 | 16 | 2013 | 2 | 52 |
| 1957 | 0 | 2 | 1976 | 0 | 3 | 1995 | 2 | 18 | 2014 | 2 | 54 |
| 1958 | 0 | 2 | 1977 | 0 | 3 | 1996 | 2 | 20 | 2015 | 4 | 58 |
| 1959 | 0 | 2 | 1978 | 0 | 3 | 1997 | 0 | 20 | 2016 | 1 | 59 |
| 1960 | 0 | 2 | 1979 | 0 | 3 | 1998 | 0 | 20 | 2017 | 4 | 63 |
| 1961 | 0 | 2 | 1980 | 0 | 3 | 1999 | 0 | 20 | 2018 | 1 | 64 |
| 1962 | 0 | 2 | 1981 | 0 | 3 | 2000 | 0 | 20 | 2019 | 2 | 66 |
| 1963 | 1 | 3 | 1982 | 0 | 3 | 2001 | 1 | 21 | 2020 | 1 | 67 |
| 1964 | 0 | 3 | 1983 | 0 | 3 | 2002 | 1 | 22 | 2021 | 3 | 70 |
| 1965 | 0 | 3 | 1984 | 0 | 3 | 2003 | 3 | 25 |
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| 1966 | 0 | 3 | 1985 | 0 | 3 | 2004 | 3 | 28 |
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| 1967 | 0 | 3 | 1986 | 0 | 3 | 2005 | 1 | 29 |
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