Frequencies for vin_9 variable in vehnit dataset :

      vin_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          4        0.27        0.27
          0 |        128        8.64        8.91
          1 |        125        8.44       17.35
          2 |        116        7.83       25.19
          3 |        117        7.90       33.09
          4 |        123        8.31       41.39
          5 |        130        8.78       50.17
          6 |        114        7.70       57.87
          7 |        127        8.58       66.44
          8 |        150       10.13       76.57
          9 |        214       14.45       91.02
          V |          1        0.07       91.09
          X |        132        8.91      100.00
------------+-----------------------------------
      Total |      1,481      100.00

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