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

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,922       99.22       99.22
          1 |          9        0.09       99.31
          2 |          1        0.01       99.32
          3 |          8        0.08       99.40
          4 |          1        0.01       99.41
          5 |         13        0.13       99.54
          6 |          4        0.04       99.58
          7 |          3        0.03       99.61
          9 |         39        0.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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