Frequencies for first 10,000 rows of prov0795 variable in pos1995 dataset :

 dentists - |
  part time |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,990       99.90       99.90
        .03 |          3        0.03       99.93
        .06 |          2        0.02       99.95
        .09 |          1        0.01       99.96
        .11 |          2        0.02       99.98
        .31 |          1        0.01       99.99
        .36 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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