Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.01        0.01
          0 |         62        0.62        0.63
          1 |         38        0.38        1.01
          2 |         41        0.41        1.42
          3 |         39        0.39        1.81
          4 |         93        0.93        2.74
          5 |         32        0.32        3.06
          6 |         26        0.26        3.32
          7 |         30        0.30        3.62
          8 |         22        0.22        3.84
          9 |        409        4.09        7.93
          A |        517        5.17       13.10
          B |        515        5.15       18.25
          C |        793        7.93       26.18
          D |        815        8.15       34.33
          E |        312        3.12       37.45
          F |        492        4.92       42.37
          G |        326        3.26       45.63
          H |        185        1.85       47.48
          J |        318        3.18       50.66
          K |        518        5.18       55.84
          L |        335        3.35       59.19
          M |        355        3.55       62.74
          N |        345        3.45       66.19
          O |          2        0.02       66.21
          P |        861        8.61       74.82
          Q |          1        0.01       74.83
          R |        470        4.70       79.53
          S |        498        4.98       84.51
          T |        305        3.05       87.56
          U |        423        4.23       91.79
          V |        151        1.51       93.30
          W |        186        1.86       95.16
          X |        272        2.72       97.88
          Y |        137        1.37       99.25
          Z |         75        0.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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