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

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,881       98.81       98.81
          1 |         11        0.11       98.92
          2 |          1        0.01       98.93
          3 |          2        0.02       98.95
          4 |          3        0.03       98.98
          5 |         17        0.17       99.15
          6 |          4        0.04       99.19
          7 |          5        0.05       99.24
          9 |         76        0.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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