YearNumber Of Reviews
1990
1
1989
4
1988
25
1987
15
1986
9
1985
24
1984
39
1983
18
1982
14
1981
3
1980
5
1979
10
1978
11
1977
8
1975
2
1971
6
1970
4
1969
1
1968
1
1966
2
1965
1