Frequencies for first 10,000 rows of prov0775 variable in pos1995 dataset :

cytotechnol |
ogists-prof |
       exam |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,997       99.97       99.97
          1 |          2        0.02       99.99
          2 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016