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

Person Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,404       54.04       54.04
          2 |      3,853       38.53       92.57
          3 |         32        0.32       92.89
          4 |          3        0.03       92.92
          5 |        596        5.96       98.88
          6 |         83        0.83       99.71
          7 |          2        0.02       99.73
          8 |          7        0.07       99.80
          9 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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