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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,419       24.19       24.19
          1 |         26        0.26       24.45
          2 |         46        0.46       24.91
          3 |         25        0.25       25.16
          4 |         32        0.32       25.48
          5 |         31        0.31       25.79
          6 |         41        0.41       26.20
          7 |         39        0.39       26.59
          8 |         50        0.50       27.09
          9 |         52        0.52       27.61
         10 |         40        0.40       28.01
         11 |         49        0.49       28.50
         12 |         47        0.47       28.97
         13 |         58        0.58       29.55
         14 |         69        0.69       30.24
         15 |         68        0.68       30.92
         16 |         71        0.71       31.63
         17 |         62        0.62       32.25
         18 |         68        0.68       32.93
         19 |         64        0.64       33.57
         20 |         58        0.58       34.15
         21 |         61        0.61       34.76
         22 |         47        0.47       35.23
         23 |         49        0.49       35.72
         24 |         59        0.59       36.31
         25 |         29        0.29       36.60
         26 |         48        0.48       37.08
         27 |         36        0.36       37.44
         28 |         32        0.32       37.76
         29 |         21        0.21       37.97
         30 |         19        0.19       38.16
         31 |         18        0.18       38.34
         32 |         12        0.12       38.46
         33 |         10        0.10       38.56
         34 |         14        0.14       38.70
         35 |         10        0.10       38.80
         36 |          6        0.06       38.86
         37 |          6        0.06       38.92
         38 |          4        0.04       38.96
         39 |          7        0.07       39.03
         40 |          5        0.05       39.08
         41 |          4        0.04       39.12
         43 |          1        0.01       39.13
         44 |          1        0.01       39.14
         46 |          1        0.01       39.15
         49 |          1        0.01       39.16
         53 |          1        0.01       39.17
         95 |          6        0.06       39.23
         96 |      5,673       56.73       95.96
         97 |        320        3.20       99.16
         98 |          6        0.06       99.22
         99 |         78        0.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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