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

       race |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,874       58.74       58.74
          1 |      3,173       31.73       90.47
          2 |        453        4.53       95.00
          3 |        179        1.79       96.79
          4 |         28        0.28       97.07
          5 |         10        0.10       97.17
          6 |          2        0.02       97.19
          7 |         33        0.33       97.52
         18 |         16        0.16       97.68
         19 |         12        0.12       97.80
         28 |         12        0.12       97.92
         48 |         10        0.10       98.02
         58 |          1        0.01       98.03
         68 |         21        0.21       98.24
         78 |         22        0.22       98.46
         98 |         58        0.58       99.04
         99 |         96        0.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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