Frequencies for first 10,000 rows of p_sf1 variable in person dataset :

    related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,935       99.35       99.35
          5 |          5        0.05       99.40
          8 |          2        0.02       99.42
          9 |          5        0.05       99.47
         13 |          3        0.03       99.50
         18 |          3        0.03       99.53
         37 |         16        0.16       99.69
         56 |         11        0.11       99.80
         61 |          1        0.01       99.81
         65 |          2        0.02       99.83
         82 |          4        0.04       99.87
         86 |          2        0.02       99.89
         87 |          1        0.01       99.90
         88 |          2        0.02       99.92
         90 |          1        0.01       99.93
         91 |          1        0.01       99.94
         99 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016