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

PERSON TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,294       52.94       52.94
          2 |      3,946       39.46       92.40
          3 |         23        0.23       92.63
          5 |        572        5.72       98.35
          6 |         85        0.85       99.20
          8 |         14        0.14       99.34
          9 |         65        0.65       99.99
         19 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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