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

    Alcohol |
Test Result |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,416       14.16       14.16
          1 |         30        0.30       14.46
          2 |         45        0.45       14.91
          3 |         49        0.49       15.40
          4 |         47        0.47       15.87
          5 |         49        0.49       16.36
          6 |         50        0.50       16.86
          7 |         37        0.37       17.23
          8 |         39        0.39       17.62
          9 |         53        0.53       18.15
         10 |         59        0.59       18.74
         11 |         67        0.67       19.41
         12 |         68        0.68       20.09
         13 |         79        0.79       20.88
         14 |         66        0.66       21.54
         15 |         70        0.70       22.24
         16 |         81        0.81       23.05
         17 |         68        0.68       23.73
         18 |         73        0.73       24.46
         19 |         77        0.77       25.23
         20 |         68        0.68       25.91
         21 |         61        0.61       26.52
         22 |         47        0.47       26.99
         23 |         57        0.57       27.56
         24 |         59        0.59       28.15
         25 |         29        0.29       28.44
         26 |         43        0.43       28.87
         27 |         36        0.36       29.23
         28 |         26        0.26       29.49
         29 |         22        0.22       29.71
         30 |         31        0.31       30.02
         31 |         12        0.12       30.14
         32 |         10        0.10       30.24
         33 |         15        0.15       30.39
         34 |          8        0.08       30.47
         35 |          4        0.04       30.51
         36 |          4        0.04       30.55
         37 |          2        0.02       30.57
         38 |          3        0.03       30.60
         39 |          5        0.05       30.65
         40 |          1        0.01       30.66
         41 |          2        0.02       30.68
         42 |          1        0.01       30.69
         43 |          3        0.03       30.72
         44 |          1        0.01       30.73
         95 |         12        0.12       30.85
         96 |      5,905       59.05       89.90
         97 |        378        3.78       93.68
         99 |        632        6.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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