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

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,096       40.96       40.96
          2 |      4,180       41.80       82.76
          3 |        996        9.96       92.72
          4 |        368        3.68       96.40
          5 |        155        1.55       97.95
          6 |         66        0.66       98.61
          7 |         21        0.21       98.82
          8 |         32        0.32       99.14
          9 |         18        0.18       99.32
         10 |         20        0.20       99.52
         12 |         24        0.24       99.76
         24 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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