Frequencies for first 10,000 rows of prov3250 variable in pos1993 dataset :

  physician |
 extender - |
  full time |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,983       99.83       99.83
        .01 |          1        0.01       99.84
        .03 |          1        0.01       99.85
        .06 |          1        0.01       99.86
        .09 |          1        0.01       99.87
        .29 |          1        0.01       99.88
        .36 |          1        0.01       99.89
        .57 |          2        0.02       99.91
       1.14 |          7        0.07       99.98
       1.37 |          1        0.01       99.99
       2.29 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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