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

Special Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,052       90.52       90.52
          1 |          6        0.06       90.58
          2 |          9        0.09       90.67
          3 |          1        0.01       90.68
          5 |          8        0.08       90.76
          6 |         10        0.10       90.86
         99 |         17        0.17       91.03
          . |        897        8.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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