Frequencies for first 10,000 rows of prov0765 variable in pos1995 dataset :

cytotechnol |
ogists-2 yr |
       coll |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,892       98.92       98.92
          1 |         61        0.61       99.53
          2 |         22        0.22       99.75
          3 |          8        0.08       99.83
          4 |          2        0.02       99.85
          6 |          5        0.05       99.90
          7 |          3        0.03       99.93
          8 |          3        0.03       99.96
         10 |          1        0.01       99.97
         12 |          1        0.01       99.98
         30 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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