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

     Person |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,124       61.24       61.24
          2 |      2,148       21.48       82.72
          3 |        857        8.57       91.29
          4 |        424        4.24       95.53
          5 |        199        1.99       97.52
          6 |        103        1.03       98.55
          7 |         57        0.57       99.12
          8 |         33        0.33       99.45
          9 |         19        0.19       99.64
         10 |         15        0.15       99.79
         11 |          9        0.09       99.88
         12 |          4        0.04       99.92
         13 |          3        0.03       99.95
         14 |          1        0.01       99.96
         15 |          1        0.01       99.97
         16 |          1        0.01       99.98
         17 |          1        0.01       99.99
         18 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016