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

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,884       38.84       38.84
          2 |      4,445       44.45       83.29
          3 |      1,092       10.92       94.21
          4 |        332        3.32       97.53
          5 |        135        1.35       98.88
          6 |         48        0.48       99.36
          7 |         21        0.21       99.57
          8 |         16        0.16       99.73
          9 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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