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

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,894       38.94       38.94
          2 |      4,446       44.46       83.40
          3 |      1,080       10.80       94.20
          4 |        332        3.32       97.52
          5 |        115        1.15       98.67
          6 |         48        0.48       99.15
          7 |         49        0.49       99.64
          8 |         16        0.16       99.80
          9 |          9        0.09       99.89
         11 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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