Frequencies for first 10,000 rows of prov1150 variable in pos1995 dataset :

 registered |
    nurse - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,919       99.19       99.19
        .01 |          1        0.01       99.20
        .06 |          5        0.05       99.25
        .07 |          1        0.01       99.26
        .11 |         18        0.18       99.44
        .13 |          1        0.01       99.45
        .17 |          1        0.01       99.46
        .23 |          8        0.08       99.54
        .25 |          1        0.01       99.55
        .26 |          1        0.01       99.56
        .34 |          7        0.07       99.63
        .36 |          1        0.01       99.64
        .43 |          1        0.01       99.65
        .44 |          1        0.01       99.66
        .46 |          5        0.05       99.71
        .57 |          1        0.01       99.72
         .6 |          1        0.01       99.73
        .69 |          2        0.02       99.75
        .73 |          1        0.01       99.76
         .8 |          2        0.02       99.78
        .84 |          1        0.01       99.79
        .86 |          1        0.01       99.80
       1.03 |          1        0.01       99.81
       1.14 |          2        0.02       99.83
        1.2 |          1        0.01       99.84
       1.27 |          1        0.01       99.85
       1.34 |          1        0.01       99.86
       1.43 |          1        0.01       99.87
       1.47 |          1        0.01       99.88
       1.49 |          1        0.01       99.89
        1.6 |          1        0.01       99.90
          2 |          1        0.01       99.91
       2.29 |          1        0.01       99.92
       2.37 |          1        0.01       99.93
        2.7 |          1        0.01       99.94
       2.86 |          1        0.01       99.95
        3.9 |          1        0.01       99.96
       6.97 |          1        0.01       99.97
      11.43 |          1        0.01       99.98
      71.43 |          1        0.01       99.99
     999.99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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