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

     Person |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,115       61.15       61.15
          2 |      2,272       22.72       83.87
          3 |        818        8.18       92.05
          4 |        387        3.87       95.92
          5 |        179        1.79       97.71
          6 |         87        0.87       98.58
          7 |         40        0.40       98.98
          8 |         25        0.25       99.23
          9 |         15        0.15       99.38
         10 |         10        0.10       99.48
         11 |          8        0.08       99.56
         12 |          7        0.07       99.63
         13 |          4        0.04       99.67
         14 |          3        0.03       99.70
         15 |          3        0.03       99.73
         16 |          3        0.03       99.76
         17 |          3        0.03       99.79
         18 |          3        0.03       99.82
         19 |          3        0.03       99.85
         20 |          2        0.02       99.87
         21 |          2        0.02       99.89
         22 |          2        0.02       99.91
         23 |          2        0.02       99.93
         24 |          1        0.01       99.94
         25 |          1        0.01       99.95
         26 |          1        0.01       99.96
         27 |          1        0.01       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