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

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,858       98.58       98.58
          1 |          3        0.03       98.61
          2 |          1        0.01       98.62
          3 |          1        0.01       98.63
          4 |          1        0.01       98.64
          5 |         24        0.24       98.88
          6 |          8        0.08       98.96
          7 |          9        0.09       99.05
          9 |         95        0.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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