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

   PERSON # |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,954       59.54       59.54
          2 |      2,233       22.33       81.87
          3 |        906        9.06       90.93
          4 |        452        4.52       95.45
          5 |        207        2.07       97.52
          6 |         88        0.88       98.40
          7 |         49        0.49       98.89
          8 |         21        0.21       99.10
          9 |         18        0.18       99.28
         10 |         13        0.13       99.41
         11 |         11        0.11       99.52
         12 |         10        0.10       99.62
         13 |          5        0.05       99.67
         14 |          3        0.03       99.70
         15 |          3        0.03       99.73
         16 |          2        0.02       99.75
         17 |          2        0.02       99.77
         18 |          2        0.02       99.79
         19 |          2        0.02       99.81
         20 |          2        0.02       99.83
         21 |          2        0.02       99.85
         22 |          2        0.02       99.87
         23 |          2        0.02       99.89
         24 |          2        0.02       99.91
         25 |          2        0.02       99.93
         26 |          2        0.02       99.95
         27 |          2        0.02       99.97
         28 |          1        0.01       99.98
         29 |          1        0.01       99.99
         30 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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