North
West East
South

-1980
-1979
-1978
-1977
-1976
-1975
-1974
-1973
-1972
-1971
-1970
-1969
-1968
-1967
-1966
-1965
-1964
-1963
-1962
-1961
-1960
-1959
-1958
-1957
-1956
-1955
-1954
-1953
-1952
-1951
-1950
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30