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

    alcohol |
 test- type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,368       53.68       53.68
          1 |      4,121       41.21       94.89
          2 |         49        0.49       95.38
          3 |         19        0.19       95.57
          4 |         37        0.37       95.94
          5 |          7        0.07       96.01
          7 |          1        0.01       96.02
          8 |         10        0.10       96.12
         10 |        221        2.21       98.33
         95 |         37        0.37       98.70
         98 |          9        0.09       98.79
         99 |        121        1.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016