Época
1946
10
1947
12
1948
12
1949
12
1950
13
1951
12
1952
12
1953
12
1954
8
1955
12
1956
10
1957
11
1958
11
1959
9
1959-1960
1
1960
9
1961
7
1962
8
1963
9
1964
9
1965
8
1966
11
1967
18
1968
12
1969
15
1970
13
1971
14
1972
11
1973
14
1974
14
1975
12
1976
12
1977
18
1978
13
1979
13
1980
11
1981
12
1982
14
1983
14
1984
14
1985
13
1986
10
1987
11
1988
11
1989
11
1990
11
1991
11
1992
10
1993
8