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

Special Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,173       91.73       91.73
          1 |          1        0.01       91.74
          2 |          2        0.02       91.76
          3 |          1        0.01       91.77
          5 |         11        0.11       91.88
          9 |         20        0.20       92.08
          . |        792        7.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016