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

PERSON TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,244       52.44       52.44
          2 |      3,993       39.93       92.37
          3 |         19        0.19       92.56
          4 |          2        0.02       92.58
          5 |        649        6.49       99.07
          6 |         63        0.63       99.70
          7 |          1        0.01       99.71
          8 |          9        0.09       99.80
          9 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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