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

Person Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,249       52.49       52.49
          2 |      3,910       39.10       91.59
          3 |         28        0.28       91.87
          4 |          2        0.02       91.89
          5 |        710        7.10       98.99
          6 |         76        0.76       99.75
          7 |          1        0.01       99.76
          8 |          3        0.03       99.79
          9 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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