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

PERSON TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,296       52.96       52.96
          2 |      3,915       39.15       92.11
          3 |         26        0.26       92.37
          4 |          2        0.02       92.39
          5 |        613        6.13       98.52
          6 |         78        0.78       99.30
          7 |          1        0.01       99.31
          8 |          7        0.07       99.38
          9 |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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