Track Trends
Year |
Start |
End |
Days |
Races |
Avg. Att. |
Avg. Han. |
1966 |
July 1 |
September 12 |
54 |
505 |
5,467 |
263,053 |
1967 |
June 30 |
September 11 |
54 |
527 |
5,344 |
251,256 |
1968 |
July 2 |
September 16 |
57 |
532 |
5,377 |
257,627 |
1969 |
June 27 |
September 8 |
57 |
545 |
5,928 |
291,209 |
1970 |
June 26 |
September 14 |
60 |
603 |
4,652 |
275,612 |
1971 |
May 29 |
June 27 |
11 |
111 |
6,399 |
333,363 |
|
July 2 |
September 6 |
49 |
465 |
5,147 |
299,649 |
1972 |
May 27 |
June 25 |
11 |
111 |
6,433 |
361,575 |
|
June 30 |
September 4 |
49 |
476 |
4,611 |
314,574 |
1973 |
May 19 |
September 3 |
62 |
597 |
5,235 |
337,675 |
1974 |
May 11 |
September 30 |
92 |
875 |
4,056 |
296,161 |
1975 |
May 10 |
September 15 |
84 |
797 |
4,161 |
297,621 |
1976 |
May 12 |
September 13 |
88 |
857 |
3,946 |
301,210 |
1977 |
May 11 |
November 20 |
120 |
1,098 |
3,858 |
308,995 |
1978 |
May 10 |
November 12 |
119 |
1,078 |
3,448 |
302,501 |
1979 |
May 9 |
November 11 |
119 |
1,075 |
3,114 |
307,696 |
1980 |
May 3 |
November 9 |
119 |
1,080 |
3,231 |
323,301 |
1981 |
May 2 |
November 8 |
119 |
1,084 |
3,300 |
343,108 |
1982 |
May 1 |
November 7 |
120 |
1,083 |
3,058 |
299,741 |
1983 |
May 7 |
November 6 |
117 |
1,047 |
2,815 |
261,751 |