Frequencies for first 10,000 rows of prov1150 variable in pos2004 dataset :

 registered |
    nurse - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,866       98.66       98.66
        .06 |          1        0.01       98.67
        .09 |          1        0.01       98.68
         .1 |          1        0.01       98.69
        .11 |          9        0.09       98.78
        .17 |          3        0.03       98.81
        .23 |          7        0.07       98.88
        .25 |          1        0.01       98.89
        .26 |          1        0.01       98.90
        .29 |          1        0.01       98.91
        .34 |          8        0.08       98.99
        .36 |          1        0.01       99.00
        .37 |          1        0.01       99.01
        .43 |          2        0.02       99.03
        .46 |          7        0.07       99.10
         .5 |          1        0.01       99.11
        .51 |          1        0.01       99.12
        .53 |          2        0.02       99.14
        .54 |          1        0.01       99.15
        .57 |          4        0.04       99.19
        .59 |          1        0.01       99.20
        .69 |          6        0.06       99.26
        .79 |          1        0.01       99.27
        .86 |          2        0.02       99.29
        .87 |          1        0.01       99.30
        .89 |          1        0.01       99.31
        .91 |          3        0.03       99.34
          1 |          1        0.01       99.35
       1.03 |          3        0.03       99.38
       1.09 |          2        0.02       99.40
        1.1 |          1        0.01       99.41
       1.14 |          8        0.08       99.49
       1.26 |          1        0.01       99.50
       1.27 |          1        0.01       99.51
        1.3 |          1        0.01       99.52
       1.34 |          2        0.02       99.54
       1.37 |          2        0.02       99.56
       1.43 |          1        0.01       99.57
       1.46 |          1        0.01       99.58
        1.5 |          1        0.01       99.59
       1.54 |          1        0.01       99.60
        1.6 |          3        0.03       99.63
       1.69 |          1        0.01       99.64
        1.7 |          1        0.01       99.65
       1.71 |          1        0.01       99.66
       1.83 |          2        0.02       99.68
       1.84 |          1        0.01       99.69
       1.87 |          1        0.01       99.70
       1.94 |          1        0.01       99.71
       1.99 |          1        0.01       99.72
          2 |          1        0.01       99.73
       2.06 |          1        0.01       99.74
       2.07 |          1        0.01       99.75
       2.13 |          1        0.01       99.76
       2.16 |          1        0.01       99.77
       2.29 |          1        0.01       99.78
        2.4 |          1        0.01       99.79
        2.5 |          1        0.01       99.80
       2.51 |          2        0.02       99.82
       2.56 |          1        0.01       99.83
       2.57 |          1        0.01       99.84
       2.67 |          1        0.01       99.85
       2.69 |          1        0.01       99.86
       2.86 |          2        0.02       99.88
       2.94 |          1        0.01       99.89
       2.97 |          1        0.01       99.90
       3.06 |          1        0.01       99.91
       3.26 |          1        0.01       99.92
       3.49 |          2        0.02       99.94
       3.57 |          1        0.01       99.95
          4 |          1        0.01       99.96
       6.51 |          1        0.01       99.97
       9.21 |          1        0.01       99.98
       9.43 |          1        0.01       99.99
      22.13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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