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

    BUS USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,863       98.63       98.63
          1 |         12        0.12       98.75
          3 |          1        0.01       98.76
          4 |         23        0.23       98.99
          5 |         14        0.14       99.13
          6 |          1        0.01       99.14
          7 |          7        0.07       99.21
          9 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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