Bugs me when an analysis doesn't start with a visual inspection of the data. How about a plot of DUIs vs Time? is it linear? Next does it show a discontinuity a

Bugs me when an analysis doesn't start with a visual inspection of the data. How about a plot of DUIs vs Time? is it linear? Next does it show a discontinuity at some pint in time? what effect does changing the bin size (time) have?