year,midapril,nov,final
2008,43,40,47.1
2004,50,49,51
2000,41,48,48.4
1996,35,41,40.7
1992,44,37,37.5
1988,45,56,53
1984,54,59,59
1980,34,47,51
1976,49,49,48.0
1972,,62,62
1968,43,43,44
1964,,36,38.5
1960,44,49,49.55
1956,61,59,58
1952,59,51,55
1948,47,50,45.6
1944,42,48,45.9
1940,,48,44.8
1936,,44,36.5