Frequencies for first 10,000 rows of vin_bt variable in person dataset :

   VIN Body |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,450       14.50       14.50
         2D |         35        0.35       14.85
         2H |        114        1.14       15.99
         2L |         11        0.11       16.10
         2P |          8        0.08       16.18
         2W |         48        0.48       16.66
         3C |         74        0.74       17.40
         3D |          1        0.01       17.41
         3P |          7        0.07       17.48
         4B |          5        0.05       17.53
         4C |        320        3.20       20.73
         4D |      2,527       25.27       46.00
         4H |         70        0.70       46.70
         4P |         16        0.16       46.86
         4W |        269        2.69       49.55
         5D |          4        0.04       49.59
         AT |         23        0.23       49.82
         BU |         41        0.41       50.23
         C4 |          7        0.07       50.30
         CB |         76        0.76       51.06
         CC |         65        0.65       51.71
         CG |         20        0.20       51.91
         CH |          4        0.04       51.95
         CP |        400        4.00       55.95
         CV |         81        0.81       56.76
         CW |        410        4.10       60.86
         DP |          1        0.01       60.87
         DS |        303        3.03       63.90
         EC |          7        0.07       63.97
         EN |          7        0.07       64.04
         ES |        135        1.35       65.39
         GG |          1        0.01       65.40
         GL |          1        0.01       65.41
         IC |         32        0.32       65.73
         IE |          5        0.05       65.78
         LB |         15        0.15       65.93
         MH |          5        0.05       65.98
         MP |          6        0.06       66.04
         MS |          3        0.03       66.07
         MX |          4        0.04       66.11
         MY |          2        0.02       66.13
         PC |        249        2.49       68.62
         PK |        441        4.41       73.03
         PS |         64        0.64       73.67
         RC |         33        0.33       74.00
         RD |         10        0.10       74.10
         RS |        505        5.05       79.15
         RT |          4        0.04       79.19
         S1 |          1        0.01       79.20
         S2 |          3        0.03       79.23
         SV |        370        3.70       82.93
         SW |         73        0.73       83.66
          T |          1        0.01       83.67
         TB |         16        0.16       83.83
         TL |         11        0.11       83.94
         TM |         28        0.28       84.22
         UT |      1,544       15.44       99.66
         VN |          7        0.07       99.73
         YY |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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