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

    BUS USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,866       98.66       98.66
          1 |          6        0.06       98.72
          2 |          1        0.01       98.73
          3 |          5        0.05       98.78
          4 |         14        0.14       98.92
          5 |          8        0.08       99.00
          6 |          2        0.02       99.02
          7 |          5        0.05       99.07
          8 |          1        0.01       99.08
          9 |         92        0.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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