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

Special Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,088       90.88       90.88
          1 |          6        0.06       90.94
          2 |          3        0.03       90.97
          3 |         16        0.16       91.13
          4 |          3        0.03       91.16
          5 |          5        0.05       91.21
          6 |         11        0.11       91.32
          7 |          8        0.08       91.40
          9 |         39        0.39       91.79
          . |        821        8.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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