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

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,914       39.14       39.14
          2 |      4,306       43.06       82.20
          3 |      1,038       10.38       92.58
          4 |        312        3.12       95.70
          5 |        175        1.75       97.45
          6 |         48        0.48       97.93
          7 |         14        0.14       98.07
          9 |         45        0.45       98.52
         10 |         10        0.10       98.62
         12 |         12        0.12       98.74
         34 |         34        0.34       99.08
         92 |         92        0.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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