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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,575       15.75       15.75
          1 |         25        0.25       16.00
          2 |         32        0.32       16.32
          3 |         29        0.29       16.61
          4 |         25        0.25       16.86
          5 |         22        0.22       17.08
          6 |         26        0.26       17.34
          7 |         37        0.37       17.71
          8 |         41        0.41       18.12
          9 |         32        0.32       18.44
         10 |         42        0.42       18.86
         11 |         49        0.49       19.35
         12 |         45        0.45       19.80
         13 |         41        0.41       20.21
         14 |         36        0.36       20.57
         15 |         58        0.58       21.15
         16 |         33        0.33       21.48
         17 |         55        0.55       22.03
         18 |         57        0.57       22.60
         19 |         47        0.47       23.07
         20 |         50        0.50       23.57
         21 |         47        0.47       24.04
         22 |         37        0.37       24.41
         23 |         41        0.41       24.82
         24 |         28        0.28       25.10
         25 |         21        0.21       25.31
         26 |         28        0.28       25.59
         27 |         21        0.21       25.80
         28 |         21        0.21       26.01
         29 |         20        0.20       26.21
         30 |         13        0.13       26.34
         31 |         12        0.12       26.46
         32 |          6        0.06       26.52
         33 |         13        0.13       26.65
         34 |         11        0.11       26.76
         35 |          5        0.05       26.81
         36 |          6        0.06       26.87
         37 |          3        0.03       26.90
         38 |          3        0.03       26.93
         39 |          4        0.04       26.97
         40 |          2        0.02       26.99
         41 |          3        0.03       27.02
         42 |          1        0.01       27.03
         43 |          1        0.01       27.04
         44 |          1        0.01       27.05
         45 |          2        0.02       27.07
         49 |          1        0.01       27.08
         95 |         10        0.10       27.18
         96 |      6,103       61.03       88.21
         97 |        529        5.29       93.50
         99 |        650        6.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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