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

     Person |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,903       99.03       99.03
          2 |         77        0.77       99.80
          3 |         11        0.11       99.91
          4 |          3        0.03       99.94
          5 |          2        0.02       99.96
          6 |          2        0.02       99.98
          7 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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