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

    Alcohol |
      Test- |
     Result |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,568       25.68       25.68
          1 |         30        0.30       25.98
          2 |         42        0.42       26.40
          3 |         24        0.24       26.64
          4 |         27        0.27       26.91
          5 |         32        0.32       27.23
          6 |         40        0.40       27.63
          7 |         29        0.29       27.92
          8 |         35        0.35       28.27
          9 |         34        0.34       28.61
         10 |         41        0.41       29.02
         11 |         52        0.52       29.54
         12 |         45        0.45       29.99
         13 |         55        0.55       30.54
         14 |         54        0.54       31.08
         15 |         58        0.58       31.66
         16 |         62        0.62       32.28
         17 |         54        0.54       32.82
         18 |         48        0.48       33.30
         19 |         63        0.63       33.93
         20 |         52        0.52       34.45
         21 |         58        0.58       35.03
         22 |         62        0.62       35.65
         23 |         57        0.57       36.22
         24 |         47        0.47       36.69
         25 |         38        0.38       37.07
         26 |         35        0.35       37.42
         27 |         26        0.26       37.68
         28 |         25        0.25       37.93
         29 |         12        0.12       38.05
         30 |         27        0.27       38.32
         31 |         13        0.13       38.45
         32 |          6        0.06       38.51
         33 |         10        0.10       38.61
         34 |          8        0.08       38.69
         35 |          9        0.09       38.78
         36 |          6        0.06       38.84
         37 |          7        0.07       38.91
         38 |          4        0.04       38.95
         39 |          4        0.04       38.99
         40 |          4        0.04       39.03
         41 |          5        0.05       39.08
         42 |          4        0.04       39.12
         43 |          2        0.02       39.14
         44 |          2        0.02       39.16
         46 |          1        0.01       39.17
         47 |          1        0.01       39.18
         50 |          1        0.01       39.19
         51 |          1        0.01       39.20
         60 |          1        0.01       39.21
         63 |          1        0.01       39.22
         65 |          1        0.01       39.23
         95 |        690        6.90       46.13
         96 |      5,343       53.43       99.56
         97 |         27        0.27       99.83
         98 |          6        0.06       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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