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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,923       19.23       19.23
          1 |         28        0.28       19.51
          2 |         41        0.41       19.92
          3 |         27        0.27       20.19
          4 |         23        0.23       20.42
          5 |         25        0.25       20.67
          6 |         33        0.33       21.00
          7 |         32        0.32       21.32
          8 |         38        0.38       21.70
          9 |         30        0.30       22.00
         10 |         40        0.40       22.40
         11 |         41        0.41       22.81
         12 |         29        0.29       23.10
         13 |         37        0.37       23.47
         14 |         56        0.56       24.03
         15 |         41        0.41       24.44
         16 |         56        0.56       25.00
         17 |         41        0.41       25.41
         18 |         52        0.52       25.93
         19 |         60        0.60       26.53
         20 |         43        0.43       26.96
         21 |         36        0.36       27.32
         22 |         41        0.41       27.73
         23 |         37        0.37       28.10
         24 |         34        0.34       28.44
         25 |         32        0.32       28.76
         26 |         37        0.37       29.13
         27 |         25        0.25       29.38
         28 |         13        0.13       29.51
         29 |         11        0.11       29.62
         30 |         13        0.13       29.75
         31 |         12        0.12       29.87
         32 |         10        0.10       29.97
         33 |          6        0.06       30.03
         34 |          5        0.05       30.08
         35 |          2        0.02       30.10
         36 |          3        0.03       30.13
         37 |          7        0.07       30.20
         38 |          4        0.04       30.24
         39 |          5        0.05       30.29
         40 |          3        0.03       30.32
         42 |          1        0.01       30.33
         43 |          2        0.02       30.35
         45 |          2        0.02       30.37
         46 |          1        0.01       30.38
         47 |          1        0.01       30.39
         49 |          1        0.01       30.40
         58 |          1        0.01       30.41
         65 |          1        0.01       30.42
         69 |          1        0.01       30.43
         95 |          7        0.07       30.50
         96 |      5,517       55.17       85.67
         97 |        650        6.50       92.17
         99 |        783        7.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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