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

Special Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,169       91.69       91.69
          1 |          5        0.05       91.74
          4 |          3        0.03       91.77
          5 |         16        0.16       91.93
          6 |          3        0.03       91.96
          7 |         12        0.12       92.08
          9 |         46        0.46       92.54
          . |        746        7.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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