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

     person |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,825       98.25       98.25
          2 |        107        1.07       99.32
          3 |         31        0.31       99.63
          4 |         11        0.11       99.74
          5 |          4        0.04       99.78
          6 |          2        0.02       99.80
          7 |          2        0.02       99.82
          8 |          2        0.02       99.84
          9 |          2        0.02       99.86
         10 |          2        0.02       99.88
         11 |          2        0.02       99.90
         12 |          1        0.01       99.91
         13 |          1        0.01       99.92
         14 |          1        0.01       99.93
         15 |          1        0.01       99.94
         16 |          1        0.01       99.95
         17 |          1        0.01       99.96
         18 |          1        0.01       99.97
         19 |          1        0.01       99.98
         20 |          1        0.01       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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