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

    Bus Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,891       98.91       98.91
          1 |         23        0.23       99.14
          4 |          7        0.07       99.21
          5 |          6        0.06       99.27
          6 |         23        0.23       99.50
          7 |          5        0.05       99.55
          8 |          1        0.01       99.56
         98 |          2        0.02       99.58
         99 |         42        0.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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