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

   PERSON # |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,082       60.82       60.82
          2 |      2,134       21.34       82.16
          3 |        822        8.22       90.38
          4 |        411        4.11       94.49
          5 |        185        1.85       96.34
          6 |         83        0.83       97.17
          7 |         49        0.49       97.66
          8 |         34        0.34       98.00
          9 |         24        0.24       98.24
         10 |         20        0.20       98.44
         11 |         19        0.19       98.63
         12 |         16        0.16       98.79
         13 |         13        0.13       98.92
         14 |         11        0.11       99.03
         15 |          9        0.09       99.12
         16 |          9        0.09       99.21
         17 |          9        0.09       99.30
         18 |          8        0.08       99.38
         19 |          8        0.08       99.46
         20 |          8        0.08       99.54
         21 |          4        0.04       99.58
         22 |          4        0.04       99.62
         23 |          3        0.03       99.65
         24 |          3        0.03       99.68
         25 |          3        0.03       99.71
         26 |          3        0.03       99.74
         27 |          3        0.03       99.77
         28 |          2        0.02       99.79
         29 |          2        0.02       99.81
         30 |          2        0.02       99.83
         31 |          2        0.02       99.85
         32 |          2        0.02       99.87
         33 |          2        0.02       99.89
         34 |          2        0.02       99.91
         35 |          1        0.01       99.92
         36 |          1        0.01       99.93
         37 |          1        0.01       99.94
         38 |          1        0.01       99.95
         39 |          1        0.01       99.96
         40 |          1        0.01       99.97
         41 |          1        0.01       99.98
         42 |          1        0.01       99.99
         43 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016