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

    ALCOHOL |
DETERMINATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        619        6.19        6.19
          2 |         47        0.47        6.66
          3 |         50        0.50        7.16
          4 |          7        0.07        7.23
          5 |        443        4.43       11.66
          8 |        217        2.17       13.83
          9 |      8,617       86.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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