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

    BUS USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,849       98.49       98.49
          1 |         15        0.15       98.64
          2 |          2        0.02       98.66
          3 |          2        0.02       98.68
          4 |         25        0.25       98.93
          5 |          1        0.01       98.94
          6 |          7        0.07       99.01
          7 |          3        0.03       99.04
          9 |         96        0.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016