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

special use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,909       89.09       89.09
          1 |         11        0.11       89.20
          2 |         47        0.47       89.67
          3 |         53        0.53       90.20
          5 |          9        0.09       90.29
          6 |          2        0.02       90.31
          7 |          3        0.03       90.34
          8 |          2        0.02       90.36
         13 |          2        0.02       90.38
         99 |          9        0.09       90.47
          . |        953        9.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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