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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,930       19.30       19.30
          1 |         39        0.39       19.69
          2 |         32        0.32       20.01
          3 |         38        0.38       20.39
          4 |         36        0.36       20.75
          5 |         31        0.31       21.06
          6 |         23        0.23       21.29
          7 |         32        0.32       21.61
          8 |         33        0.33       21.94
          9 |         38        0.38       22.32
         10 |         41        0.41       22.73
         11 |         42        0.42       23.15
         12 |         50        0.50       23.65
         13 |         33        0.33       23.98
         14 |         48        0.48       24.46
         15 |         51        0.51       24.97
         16 |         49        0.49       25.46
         17 |         69        0.69       26.15
         18 |         42        0.42       26.57
         19 |         54        0.54       27.11
         20 |         52        0.52       27.63
         21 |         41        0.41       28.04
         22 |         42        0.42       28.46
         23 |         35        0.35       28.81
         24 |         31        0.31       29.12
         25 |         35        0.35       29.47
         26 |         21        0.21       29.68
         27 |         27        0.27       29.95
         28 |         17        0.17       30.12
         29 |         17        0.17       30.29
         30 |         17        0.17       30.46
         31 |          6        0.06       30.52
         32 |          8        0.08       30.60
         33 |          8        0.08       30.68
         34 |          4        0.04       30.72
         35 |          7        0.07       30.79
         36 |          2        0.02       30.81
         37 |          9        0.09       30.90
         38 |          1        0.01       30.91
         39 |          5        0.05       30.96
         40 |          2        0.02       30.98
         41 |          3        0.03       31.01
         42 |          1        0.01       31.02
         44 |          1        0.01       31.03
         45 |          2        0.02       31.05
         46 |          1        0.01       31.06
         47 |          3        0.03       31.09
         53 |          1        0.01       31.10
         55 |          1        0.01       31.11
         94 |          1        0.01       31.12
         95 |          4        0.04       31.16
         96 |      6,106       61.06       92.22
         97 |        596        5.96       98.18
         98 |          1        0.01       98.19
         99 |        181        1.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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