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

    ALCOHOL |
DETERMINATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        574        5.74        5.74
          2 |         57        0.57        6.31
          3 |         39        0.39        6.70
          4 |          1        0.01        6.71
          5 |        425        4.25       10.96
          8 |        161        1.61       12.57
          9 |      8,743       87.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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