Frequencies for first 10,000 rows of rn_cntrct_cnt variable in pos1992 dataset :

 registered |
    nurse - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,873       98.73       98.73
        .01 |          1        0.01       98.74
        .04 |          1        0.01       98.75
        .05 |          1        0.01       98.76
        .06 |          1        0.01       98.77
        .07 |          2        0.02       98.79
         .1 |          2        0.02       98.81
        .11 |         16        0.16       98.97
        .14 |          1        0.01       98.98
        .16 |          1        0.01       98.99
        .17 |          1        0.01       99.00
        .23 |          7        0.07       99.07
        .25 |         12        0.12       99.19
        .31 |          1        0.01       99.20
        .33 |          2        0.02       99.22
        .34 |          8        0.08       99.30
        .36 |          3        0.03       99.33
        .37 |          1        0.01       99.34
         .4 |          1        0.01       99.35
        .43 |          2        0.02       99.37
        .46 |          2        0.02       99.39
        .47 |          1        0.01       99.40
         .5 |          2        0.02       99.42
        .57 |          6        0.06       99.48
        .64 |          1        0.01       99.49
        .67 |          1        0.01       99.50
        .69 |          1        0.01       99.51
        .73 |          1        0.01       99.52
        .75 |          7        0.07       99.59
         .8 |          1        0.01       99.60
        .86 |          1        0.01       99.61
        .89 |          1        0.01       99.62
          1 |          2        0.02       99.64
       1.02 |          1        0.01       99.65
       1.03 |          1        0.01       99.66
       1.14 |          5        0.05       99.71
       1.16 |          1        0.01       99.72
       1.17 |          1        0.01       99.73
       1.26 |          1        0.01       99.74
       1.29 |          1        0.01       99.75
       1.36 |          1        0.01       99.76
       1.37 |          1        0.01       99.77
        1.5 |          1        0.01       99.78
        1.8 |          1        0.01       99.79
       1.86 |          1        0.01       99.80
       1.87 |          1        0.01       99.81
       1.94 |          1        0.01       99.82
          2 |          4        0.04       99.86
       2.29 |          1        0.01       99.87
        2.5 |          1        0.01       99.88
       2.51 |          1        0.01       99.89
       2.74 |          1        0.01       99.90
       2.86 |          1        0.01       99.91
          3 |          1        0.01       99.92
       3.26 |          1        0.01       99.93
        3.5 |          1        0.01       99.94
        4.5 |          1        0.01       99.95
       4.64 |          1        0.01       99.96
       4.99 |          1        0.01       99.97
          5 |          1        0.01       99.98
      21.43 |          1        0.01       99.99
        575 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017