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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,996       19.96       19.96
          1 |         34        0.34       20.30
          2 |         38        0.38       20.68
          3 |         38        0.38       21.06
          4 |         25        0.25       21.31
          5 |         29        0.29       21.60
          6 |         33        0.33       21.93
          7 |         46        0.46       22.39
          8 |         39        0.39       22.78
          9 |         43        0.43       23.21
         10 |         35        0.35       23.56
         11 |         43        0.43       23.99
         12 |         51        0.51       24.50
         13 |         46        0.46       24.96
         14 |         59        0.59       25.55
         15 |         51        0.51       26.06
         16 |         54        0.54       26.60
         17 |         58        0.58       27.18
         18 |         51        0.51       27.69
         19 |         50        0.50       28.19
         20 |         50        0.50       28.69
         21 |         42        0.42       29.11
         22 |         39        0.39       29.50
         23 |         46        0.46       29.96
         24 |         38        0.38       30.34
         25 |         43        0.43       30.77
         26 |         40        0.40       31.17
         27 |         27        0.27       31.44
         28 |         17        0.17       31.61
         29 |         13        0.13       31.74
         30 |         20        0.20       31.94
         31 |          8        0.08       32.02
         32 |         10        0.10       32.12
         33 |          8        0.08       32.20
         34 |          5        0.05       32.25
         35 |          2        0.02       32.27
         36 |          4        0.04       32.31
         37 |          3        0.03       32.34
         38 |          3        0.03       32.37
         39 |          5        0.05       32.42
         40 |          3        0.03       32.45
         41 |          1        0.01       32.46
         42 |          1        0.01       32.47
         43 |          1        0.01       32.48
         45 |          3        0.03       32.51
         48 |          1        0.01       32.52
         50 |          1        0.01       32.53
         53 |          1        0.01       32.54
         95 |          9        0.09       32.63
         96 |      5,527       55.27       87.90
         97 |        513        5.13       93.03
         99 |        697        6.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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