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

     Person |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,531       65.31       65.31
          2 |      1,984       19.84       85.15
          3 |        730        7.30       92.45
          4 |        375        3.75       96.20
          5 |        171        1.71       97.91
          6 |         71        0.71       98.62
          7 |         35        0.35       98.97
          8 |         25        0.25       99.22
          9 |         15        0.15       99.37
         10 |         12        0.12       99.49
         11 |          8        0.08       99.57
         12 |          8        0.08       99.65
         13 |          4        0.04       99.69
         14 |          3        0.03       99.72
         15 |          3        0.03       99.75
         16 |          3        0.03       99.78
         17 |          2        0.02       99.80
         18 |          2        0.02       99.82
         19 |          2        0.02       99.84
         20 |          2        0.02       99.86
         21 |          2        0.02       99.88
         22 |          2        0.02       99.90
         23 |          1        0.01       99.91
         24 |          1        0.01       99.92
         25 |          1        0.01       99.93
         26 |          1        0.01       99.94
         27 |          1        0.01       99.95
         28 |          1        0.01       99.96
         29 |          1        0.01       99.97
         30 |          1        0.01       99.98
         31 |          1        0.01       99.99
         32 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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