Frequencies for first 10,000 rows of rolinloc variable in vehicle dataset :

location of |
   rollover |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,354       83.54       83.54
          1 |        358        3.58       87.12
          2 |         53        0.53       87.65
          3 |        147        1.47       89.12
          4 |         16        0.16       89.28
          5 |        800        8.00       97.28
          6 |        242        2.42       99.70
          9 |         30        0.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016