Track Trends
Year | Start | End | Days | Races | Avg. Att. | Avg. Han. |
1966 | October 3 | October 22 | 18 | 162 | 6,043 | 501,675 |
1967 | October 2 | October 21 | 18 | 162 | 6,042 | 538,585 |
1968 | September 30 | October 19 | 18 | 162 | 6,195 | 581,475 |
1969 | September 29 | October 18 | 18 | 162 | 6,322 | 589,243 |
1970 | October 5 | October 24 | 18 | 162 | 6,632 | 634,162 |
1971 | September 13 | October 2 | 18 | 162 | 6,099 | 580,918 |
1972 | September 11 | September 30 | 18 | 162 | 5,958 | 588,902 |