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

     Person |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,568       65.68       65.68
          2 |      1,952       19.52       85.20
          3 |        726        7.26       92.46
          4 |        370        3.70       96.16
          5 |        173        1.73       97.89
          6 |         78        0.78       98.67
          7 |         45        0.45       99.12
          8 |         25        0.25       99.37
          9 |         15        0.15       99.52
         10 |          7        0.07       99.59
         11 |          6        0.06       99.65
         12 |          4        0.04       99.69
         13 |          3        0.03       99.72
         14 |          3        0.03       99.75
         15 |          3        0.03       99.78
         16 |          3        0.03       99.81
         17 |          2        0.02       99.83
         18 |          2        0.02       99.85
         19 |          2        0.02       99.87
         20 |          2        0.02       99.89
         21 |          2        0.02       99.91
         22 |          2        0.02       99.93
         23 |          1        0.01       99.94
         24 |          1        0.01       99.95
         25 |          1        0.01       99.96
         26 |          1        0.01       99.97
         27 |          1        0.01       99.98
         28 |          1        0.01       99.99
         29 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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