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

    alcohol |
 test- type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,501       55.01       55.01
          1 |      4,006       40.06       95.07
          2 |         44        0.44       95.51
          3 |         19        0.19       95.70
          4 |         29        0.29       95.99
          5 |          4        0.04       96.03
          7 |          7        0.07       96.10
          8 |         10        0.10       96.20
         10 |        243        2.43       98.63
         95 |          2        0.02       98.65
         98 |         37        0.37       99.02
         99 |         98        0.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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