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

    ALCOHOL |
       TEST |
    RESULTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,567       15.67       15.67
          1 |         28        0.28       15.95
          2 |         38        0.38       16.33
          3 |         31        0.31       16.64
          4 |         18        0.18       16.82
          5 |         24        0.24       17.06
          6 |         23        0.23       17.29
          7 |         21        0.21       17.50
          8 |         30        0.30       17.80
          9 |         33        0.33       18.13
         10 |         30        0.30       18.43
         11 |         33        0.33       18.76
         12 |         43        0.43       19.19
         13 |         30        0.30       19.49
         14 |         37        0.37       19.86
         15 |         40        0.40       20.26
         16 |         58        0.58       20.84
         17 |         48        0.48       21.32
         18 |         53        0.53       21.85
         19 |         30        0.30       22.15
         20 |         36        0.36       22.51
         21 |         40        0.40       22.91
         22 |         43        0.43       23.34
         23 |         33        0.33       23.67
         24 |         26        0.26       23.93
         25 |         28        0.28       24.21
         26 |         16        0.16       24.37
         27 |         21        0.21       24.58
         28 |         18        0.18       24.76
         29 |         13        0.13       24.89
         30 |         17        0.17       25.06
         31 |         14        0.14       25.20
         32 |         13        0.13       25.33
         33 |          5        0.05       25.38
         34 |          8        0.08       25.46
         35 |          3        0.03       25.49
         36 |          1        0.01       25.50
         37 |          4        0.04       25.54
         38 |          1        0.01       25.55
         39 |          3        0.03       25.58
         40 |          1        0.01       25.59
         41 |          2        0.02       25.61
         42 |          1        0.01       25.62
         45 |          1        0.01       25.63
         46 |          1        0.01       25.64
         49 |          1        0.01       25.65
         58 |          1        0.01       25.66
         95 |          5        0.05       25.71
         96 |      5,924       59.24       84.95
         97 |        745        7.45       92.40
         99 |        760        7.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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