Track Trends
Year |
Start |
End |
Days |
Races |
Avg. Att. |
Avg. Han. |
1966 |
April 26 |
July 16 |
60 |
540 |
7,396 |
380,564 |
1967 |
April 25 |
July 15 |
60 |
540 |
7,168 |
384,166 |
1968 |
July 16 |
October 7 |
60 |
541 |
6,059 |
361,179 |
1969 |
April 25 |
July 21 |
60 |
541 |
6,156 |
377,904 |
1970 |
July 31 |
November 14 |
75 |
676 |
5,270 |
344,106 |
1971 |
April 15 |
July 27 |
75 |
679 |
5,166 |
342,010 |
1972 |
August 9 |
November 18 |
75 |
678 |
4,001 |
299,523 |
1973 |
April 17 |
July 30 |
75 |
692 |
4,748 |
387,951 |
1974 |
May 10 |
August 1 |
71 |
659 |
4,914 |
405,532 |
|
August 2 |
November 15 |
75 |
707 |
4,483 |
388,610 |
1975 |
May 1 |
July 22 |
67 |
640 |
5,267 |
430,842 |
|
July 23 |
November 8 |
83 |
784 |
4,483 |
407,581 |
1976 |
August 2 |
November 27 |
90 |
862 |
4,868 |
400,572 |
1977 |
April 9 |
August 8 |
95 |
908 |
5,293 |
445,050 |
1978 |
August 5 |
November 25 |
79 |
728 |
4,559 |
443,085 |
1979 |
April 10 |
July 7 |
65 |
651 |
4,634 |
475,384 |