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

PERSON TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,229       52.29       52.29
          2 |      4,069       40.69       92.98
          3 |         38        0.38       93.36
          5 |        536        5.36       98.72
          6 |         89        0.89       99.61
          8 |         19        0.19       99.80
          9 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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