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

    Alcohol |
Test Result |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,150       11.50       11.50
          1 |         31        0.31       11.81
          2 |         41        0.41       12.22
          3 |         38        0.38       12.60
          4 |         43        0.43       13.03
          5 |         32        0.32       13.35
          6 |         42        0.42       13.77
          7 |         53        0.53       14.30
          8 |         61        0.61       14.91
          9 |         55        0.55       15.46
         10 |         62        0.62       16.08
         11 |         55        0.55       16.63
         12 |         57        0.57       17.20
         13 |         62        0.62       17.82
         14 |         70        0.70       18.52
         15 |         63        0.63       19.15
         16 |         88        0.88       20.03
         17 |         81        0.81       20.84
         18 |         88        0.88       21.72
         19 |         78        0.78       22.50
         20 |         66        0.66       23.16
         21 |         55        0.55       23.71
         22 |         68        0.68       24.39
         23 |         53        0.53       24.92
         24 |         52        0.52       25.44
         25 |         39        0.39       25.83
         26 |         43        0.43       26.26
         27 |         33        0.33       26.59
         28 |         25        0.25       26.84
         29 |         18        0.18       27.02
         30 |         17        0.17       27.19
         31 |         17        0.17       27.36
         32 |         14        0.14       27.50
         33 |         17        0.17       27.67
         34 |          8        0.08       27.75
         35 |          5        0.05       27.80
         36 |          6        0.06       27.86
         37 |          7        0.07       27.93
         38 |          5        0.05       27.98
         39 |          3        0.03       28.01
         41 |          3        0.03       28.04
         42 |          2        0.02       28.06
         43 |          1        0.01       28.07
         44 |          1        0.01       28.08
         55 |          1        0.01       28.09
         95 |         10        0.10       28.19
         96 |      5,813       58.13       86.32
         97 |        478        4.78       91.10
         99 |        890        8.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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