During the past 30 days, how many times have you
driven when you have had perhaps too much to drink?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
None 6295 97.3 0.2 96.8 97.8
One 102 1.7 0.2 1.3 2.1
Two 35 0.6 0.1 0.4 0.8
Three or more 18 0.4 0.1 0.2 0.6

Among all respondents, excluding those who had no drinks in the
past 30 days, never drive or ride in a car, unknowns and refusals.