Based on the graph, the greatest percentage of increase in accidents happens in which two years? (Visualize the
steepest slopes between two given bars of the graph, and enter your answer in sequence beginning with the earliest
year.)
Vehicular Accidents Resulting in Death or
Injury, City of Hard Knocks (1965-1970)
Number
Accidents
of
1965
1966
1967
1968
1969
1970
Years
Y
to
The largest steep increase was from
and the second largest increase was from