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

    Alcohol |
Test Result |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,411       14.11       14.11
          1 |         33        0.33       14.44
          2 |         44        0.44       14.88
          3 |         42        0.42       15.30
          4 |         32        0.32       15.62
          5 |         48        0.48       16.10
          6 |         49        0.49       16.59
          7 |         52        0.52       17.11
          8 |         46        0.46       17.57
          9 |         46        0.46       18.03
         10 |         45        0.45       18.48
         11 |         65        0.65       19.13
         12 |         72        0.72       19.85
         13 |         78        0.78       20.63
         14 |         80        0.80       21.43
         15 |         93        0.93       22.36
         16 |         96        0.96       23.32
         17 |         78        0.78       24.10
         18 |         91        0.91       25.01
         19 |         85        0.85       25.86
         20 |         79        0.79       26.65
         21 |         71        0.71       27.36
         22 |         83        0.83       28.19
         23 |         45        0.45       28.64
         24 |         47        0.47       29.11
         25 |         46        0.46       29.57
         26 |         42        0.42       29.99
         27 |         35        0.35       30.34
         28 |         34        0.34       30.68
         29 |         24        0.24       30.92
         30 |         18        0.18       31.10
         31 |         13        0.13       31.23
         32 |         21        0.21       31.44
         33 |         12        0.12       31.56
         34 |         15        0.15       31.71
         35 |          5        0.05       31.76
         36 |          5        0.05       31.81
         37 |          6        0.06       31.87
         39 |          3        0.03       31.90
         40 |          3        0.03       31.93
         41 |          2        0.02       31.95
         42 |          3        0.03       31.98
         43 |          3        0.03       32.01
         44 |          1        0.01       32.02
         46 |          1        0.01       32.03
         47 |          1        0.01       32.04
         48 |          1        0.01       32.05
         52 |          1        0.01       32.06
         95 |          5        0.05       32.11
         96 |      5,710       57.10       89.21
         97 |        398        3.98       93.19
         99 |        681        6.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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