Frequencies for vin_4 variable in vehnit dataset :

      vin_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         13        1.02        1.02
          1 |          6        0.47        1.49
          2 |          3        0.24        1.73
          3 |          5        0.39        2.12
          5 |          9        0.71        2.83
          6 |          3        0.24        3.07
          7 |          4        0.31        3.38
          9 |         55        4.32        7.70
          A |         77        6.05       13.76
          B |         81        6.37       20.13
          C |         90        7.08       27.20
          D |         74        5.82       33.02
          E |        144       11.32       44.34
          F |         73        5.74       50.08
          G |         64        5.03       55.11
          H |        113        8.88       63.99
          J |         56        4.40       68.40
          K |         41        3.22       71.62
          L |         34        2.67       74.29
          M |         14        1.10       75.39
          N |         55        4.32       79.72
          P |         20        1.57       81.29
          R |         46        3.62       84.91
          S |         38        2.99       87.89
          T |         12        0.94       88.84
          U |          4        0.31       89.15
          V |         12        0.94       90.09
          W |         48        3.77       93.87
          X |         15        1.18       95.05
          Y |         27        2.12       97.17
          Z |         36        2.83      100.00
------------+-----------------------------------
      Total |      1,272      100.00

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