Mothers Against Drunk Driving (MADD) commissioned a national poll asking Canadian citizens about appropriate penalties for multiple DUI (driving under the influence) offenders. The results of the survey found that 40% of respondents felt jail time was appropriate and 75% felt that a lifetime driving ban was appropriate. Only 15% of respondents were against both a lifetime ban and jail time.
Based on the survey, what proportion of Canadians feel that punishment should include both jail time and a lifetime driving ban?