Frequencies for vin_1 variable in vehnit dataset :

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          4        0.27        0.27
          1 |        834       56.31       56.58
          2 |        160       10.80       67.39
          3 |         64        4.32       71.71
          4 |         72        4.86       76.57
          5 |         19        1.28       77.85
          6 |          1        0.07       77.92
          7 |          1        0.07       77.99
          9 |         97        6.55       84.54
          B |          1        0.07       84.60
          C |          5        0.34       84.94
          D |          1        0.07       85.01
          E |          1        0.07       85.08
          F |         10        0.68       85.75
          H |          2        0.14       85.89
          J |        141        9.52       95.41
          K |         20        1.35       96.76
          L |          2        0.14       96.89
          R |          2        0.14       97.03
          S |          1        0.07       97.10
          T |          2        0.14       97.23
          V |          3        0.20       97.43
          W |         28        1.89       99.32
          X |          2        0.14       99.46
          Y |          8        0.54      100.00
------------+-----------------------------------
      Total |      1,481      100.00

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