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

PERSON TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,673       56.73       56.73
          2 |      3,631       36.31       93.04
          3 |         27        0.27       93.31
          4 |          3        0.03       93.34
          5 |        533        5.33       98.67
          6 |         69        0.69       99.36
          8 |          9        0.09       99.45
          9 |         54        0.54       99.99
         19 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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