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Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
1950 | | | | | | | | | | | | |
1951 | | | | | | | | | | | | |
1952 | | | | | | | | | | | | |
1953 | | | | | | | | | | | | |
1954 | | | | | | | | | | | | |
1955 | | | | | | | | | | | | |
1956 | | | | | | | | | | | | |
1957 | | | | | | | | | | | | |
1958 | | | | | | | | | | | | |
1959 | | | | | | | | | | | | |
1960 | | | | | | | | | | | | |
1961 | | | | | | | | | | | | |
1962 | | | | | | | | | | | | |
1963 | | | | | | | | | | | | |
1964 | | | | | | | | | | | | |
1965 | | | | | | | | | | | | |
1966 | | | | | | | | | | | 2 | 2 |
1967 | | | 2 | | 4 | | 2 | 1 | 4 | | | |
1968 | | | | | | | 4 | | | | | |
1969 | | | | | | | | | | | | |
1970 | | | | | | | 3 | | | | | 1 |
1971 | 2 | | | | 2 | 3 | | | | | | 1 |
1972 | 3 | 1 | 1 | 7 | | 8 | | 1 | 6 | | 7 | 5 |
1973 | | 3 | 3 | 9 | 11 | 3 | | 12 | 1 | 3 | 3 | 9 |
1974 | 7 | 4 | 7 | | 6 | 14 | 4 | 1 | 5 | 6 | 14 | 3 |
1975 | 3 | 6 | 5 | 4 | 9 | | 1 | | 7 | 5 | 2 | 5 |
1976 | 8 | 2 | 2 | 7 | 10 | 3 | 3 | 3 | 4 | 11 | 6 | |
1977 | 11 | 4 | 8 | 10 | 21 | 15 | | 14 | 6 | 5 | | 3 |
1978 | 2 | 6 | 2 | 6 | 23 | 6 | 10 | 8 | 4 | 9 | 9 | |
1979 | 9 | 4 | 3 | 3 | | 8 | 8 | 1 | 8 | 8 | 11 | 5 |
1980 | 14 | 9 | 14 | 5 | 5 | 8 | 1 | 4 | 5 | 7 | 2 | 10 |
1981 | 4 | 9 | 3 | | 10 | 7 | | | 7 | 20 | 13 | 7 |
1982 | 6 | 9 | 19 | 11 | 11 | 12 | 7 | 22 | 5 | 3 | 14 | 7 |
1983 | 12 | 7 | 9 | 10 | 6 | 17 | 13 | 18 | 18 | 8 | 9 | 12 |
1984 | 14 | 12 | 6 | 10 | 11 | 16 | 8 | 6 | 19 | 31 | 12 | 9 |
1985 | 17 | 24 | 8 | 11 | 7 | 9 | 6 | 25 | 6 | 12 | 5 | 20 |
1986 | 17 | 9 | 17 | 16 | 14 | 21 | 11 | 9 | 20 | 4 | 14 | 9 |
1987 | 7 | 12 | 2 | 15 | 5 | 7 | 2 | | 1 | 9 | 13 | |
1988 | 1 | 1 | 3 | 7 | 1 | 5 | 1 | 10 | 7 | 3 | 16 | 1 |
1989 | 7 | 4 | | 9 | 10 | 5 | 2 | 5 | 2 | | 2 | |
1990 | | 2 | | | 5 | | | | | | | |