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

Person Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,318       53.18       53.18
          2 |      3,838       38.38       91.56
          3 |         20        0.20       91.76
          4 |          2        0.02       91.78
          5 |        710        7.10       98.88
          6 |         78        0.78       99.66
          7 |          3        0.03       99.69
          8 |          8        0.08       99.77
          9 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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