Frequencies for first 10,000 rows of vin_1 variable in vehicle dataset :

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         42        0.42        0.42
          1 |      5,098       50.98       51.40
          2 |        785        7.85       59.25
          3 |        209        2.09       61.34
          4 |        255        2.55       63.89
          5 |         17        0.17       64.06
          6 |         55        0.55       64.61
          7 |         19        0.19       64.80
          8 |         24        0.24       65.04
          9 |        447        4.47       69.51
          A |         10        0.10       69.61
          B |         29        0.29       69.90
          C |        217        2.17       72.07
          D |         26        0.26       72.33
          E |         31        0.31       72.64
          F |        124        1.24       73.88
          G |         23        0.23       74.11
          H |         30        0.30       74.41
          I |          1        0.01       74.42
          J |      1,964       19.64       94.06
          K |        173        1.73       95.79
          L |          4        0.04       95.83
          M |          9        0.09       95.92
          N |          5        0.05       95.97
          P |         15        0.15       96.12
          R |         61        0.61       96.73
          S |         41        0.41       97.14
          T |         55        0.55       97.69
          U |         10        0.10       97.79
          V |         20        0.20       97.99
          W |        148        1.48       99.47
          X |          7        0.07       99.54
          Y |         34        0.34       99.88
          Z |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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