Frequencies for first 10,000 rows of actvty_profnl_cntrct_cnt variable in pos2000 dataset :

   activity |
professiona |
        l - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,847       98.47       98.47
        .01 |         15        0.15       98.62
        .03 |         15        0.15       98.77
        .04 |          5        0.05       98.82
        .05 |          1        0.01       98.83
        .06 |         36        0.36       99.19
        .07 |          2        0.02       99.21
        .09 |          3        0.03       99.24
        .11 |         28        0.28       99.52
        .14 |          1        0.01       99.53
        .16 |          1        0.01       99.54
        .23 |         10        0.10       99.64
        .25 |          4        0.04       99.68
        .26 |          1        0.01       99.69
        .29 |          1        0.01       99.70
        .34 |          2        0.02       99.72
        .36 |          5        0.05       99.77
        .43 |          1        0.01       99.78
        .46 |          1        0.01       99.79
         .5 |          1        0.01       99.80
        .51 |          1        0.01       99.81
        .55 |          1        0.01       99.82
         .8 |          1        0.01       99.83
        .86 |          1        0.01       99.84
        .91 |          1        0.01       99.85
          1 |          1        0.01       99.86
       1.14 |          8        0.08       99.94
       1.24 |          1        0.01       99.95
       1.26 |          1        0.01       99.96
       1.81 |          1        0.01       99.97
          2 |          1        0.01       99.98
     114.29 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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