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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          2        0.02        0.02
          0 |         42        0.42        0.44
          1 |         28        0.28        0.72
          2 |         39        0.39        1.11
          3 |         34        0.34        1.45
          4 |         83        0.83        2.28
          5 |         23        0.23        2.51
          6 |         17        0.17        2.68
          7 |         36        0.36        3.04
          8 |         15        0.15        3.19
          9 |        406        4.06        7.25
          A |        524        5.24       12.49
          B |        485        4.85       17.34
          C |        869        8.69       26.03
          D |        776        7.76       33.79
          E |        301        3.01       36.80
          F |        526        5.26       42.06
          G |        354        3.54       45.60
          H |        193        1.93       47.53
          J |        323        3.23       50.76
          K |        524        5.24       56.00
          L |        331        3.31       59.31
          M |        387        3.87       63.18
          N |        374        3.74       66.92
          P |        821        8.21       75.13
          Q |          1        0.01       75.14
          R |        429        4.29       79.43
          S |        504        5.04       84.47
          T |        255        2.55       87.02
          U |        449        4.49       91.51
          V |        138        1.38       92.89
          W |        209        2.09       94.98
          X |        300        3.00       97.98
          Y |        129        1.29       99.27
          Z |         73        0.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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