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

    Bus Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,926       99.26       99.26
          1 |         17        0.17       99.43
          4 |          2        0.02       99.45
          5 |          8        0.08       99.53
          6 |         21        0.21       99.74
          7 |          6        0.06       99.80
         98 |          2        0.02       99.82
         99 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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