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

       race |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,822       58.22       58.22
          1 |      3,327       33.27       91.49
          2 |        471        4.71       96.20
          3 |        170        1.70       97.90
          4 |         15        0.15       98.05
          5 |          5        0.05       98.10
          7 |         28        0.28       98.38
         18 |         13        0.13       98.51
         19 |          9        0.09       98.60
         28 |          9        0.09       98.69
         38 |          1        0.01       98.70
         48 |         17        0.17       98.87
         58 |          1        0.01       98.88
         68 |         17        0.17       99.05
         78 |         16        0.16       99.21
         97 |         16        0.16       99.37
         98 |         36        0.36       99.73
         99 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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