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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,435       14.35       14.35
          1 |         15        0.15       14.50
          2 |         38        0.38       14.88
          3 |         37        0.37       15.25
          4 |         25        0.25       15.50
          5 |         43        0.43       15.93
          6 |         27        0.27       16.20
          7 |         42        0.42       16.62
          8 |         33        0.33       16.95
          9 |         40        0.40       17.35
         10 |         60        0.60       17.95
         11 |         48        0.48       18.43
         12 |         38        0.38       18.81
         13 |         50        0.50       19.31
         14 |         66        0.66       19.97
         15 |         70        0.70       20.67
         16 |         79        0.79       21.46
         17 |         67        0.67       22.13
         18 |         63        0.63       22.76
         19 |         66        0.66       23.42
         20 |         71        0.71       24.13
         21 |         61        0.61       24.74
         22 |         53        0.53       25.27
         23 |         40        0.40       25.67
         24 |         38        0.38       26.05
         25 |         46        0.46       26.51
         26 |         38        0.38       26.89
         27 |         33        0.33       27.22
         28 |         29        0.29       27.51
         29 |         30        0.30       27.81
         30 |         22        0.22       28.03
         31 |         20        0.20       28.23
         32 |         10        0.10       28.33
         33 |         12        0.12       28.45
         34 |         10        0.10       28.55
         35 |          4        0.04       28.59
         36 |          6        0.06       28.65
         37 |          6        0.06       28.71
         38 |          5        0.05       28.76
         39 |          5        0.05       28.81
         40 |          1        0.01       28.82
         41 |          4        0.04       28.86
         42 |          1        0.01       28.87
         43 |          3        0.03       28.90
         44 |          1        0.01       28.91
         45 |          1        0.01       28.92
         46 |          2        0.02       28.94
         47 |          3        0.03       28.97
         95 |         10        0.10       29.07
         96 |      5,981       59.81       88.88
         97 |        544        5.44       94.32
         99 |        568        5.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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