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

    alcohol |
 test- type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,493       54.93       54.93
          1 |      4,060       40.60       95.53
          2 |         27        0.27       95.80
          3 |         19        0.19       95.99
          4 |         19        0.19       96.18
          5 |          7        0.07       96.25
          7 |          2        0.02       96.27
          8 |          8        0.08       96.35
         10 |        227        2.27       98.62
         95 |          2        0.02       98.64
         98 |         28        0.28       98.92
         99 |        108        1.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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