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

    VEHICLE |
CONFIGURATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,074       90.74       90.74
          1 |        115        1.15       91.89
          2 |         78        0.78       92.67
          3 |         33        0.33       93.00
          4 |         27        0.27       93.27
          5 |         21        0.21       93.48
          6 |        463        4.63       98.11
          7 |         50        0.50       98.61
          8 |          1        0.01       98.62
         19 |         14        0.14       98.76
         20 |          2        0.02       98.78
         21 |         55        0.55       99.33
         70 |          3        0.03       99.36
         99 |         64        0.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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