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

special use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,099       90.99       90.99
          1 |          3        0.03       91.02
          2 |          3        0.03       91.05
          3 |          1        0.01       91.06
          5 |          4        0.04       91.10
          6 |          5        0.05       91.15
          7 |          3        0.03       91.18
         99 |          7        0.07       91.25
          . |        875        8.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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