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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,475       14.75       14.75
          1 |         30        0.30       15.05
          2 |         37        0.37       15.42
          3 |         23        0.23       15.65
          4 |         22        0.22       15.87
          5 |         22        0.22       16.09
          6 |         29        0.29       16.38
          7 |         25        0.25       16.63
          8 |         31        0.31       16.94
          9 |         23        0.23       17.17
         10 |         26        0.26       17.43
         11 |         33        0.33       17.76
         12 |         51        0.51       18.27
         13 |         50        0.50       18.77
         14 |         35        0.35       19.12
         15 |         43        0.43       19.55
         16 |         41        0.41       19.96
         17 |         51        0.51       20.47
         18 |         45        0.45       20.92
         19 |         43        0.43       21.35
         20 |         58        0.58       21.93
         21 |         36        0.36       22.29
         22 |         45        0.45       22.74
         23 |         35        0.35       23.09
         24 |         30        0.30       23.39
         25 |         29        0.29       23.68
         26 |         26        0.26       23.94
         27 |         22        0.22       24.16
         28 |         16        0.16       24.32
         29 |         16        0.16       24.48
         30 |         16        0.16       24.64
         31 |         11        0.11       24.75
         32 |         12        0.12       24.87
         33 |         10        0.10       24.97
         34 |          9        0.09       25.06
         35 |          9        0.09       25.15
         36 |          4        0.04       25.19
         37 |          3        0.03       25.22
         38 |          1        0.01       25.23
         40 |          2        0.02       25.25
         41 |          2        0.02       25.27
         42 |          1        0.01       25.28
         43 |          2        0.02       25.30
         44 |          1        0.01       25.31
         45 |          1        0.01       25.32
         95 |         16        0.16       25.48
         96 |      5,997       59.97       85.45
         97 |        685        6.85       92.30
         99 |        770        7.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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