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

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,210       92.10       92.10
          1 |          1        0.01       92.11
          2 |          2        0.02       92.13
          3 |          8        0.08       92.21
          5 |         16        0.16       92.37
          6 |          4        0.04       92.41
          7 |          3        0.03       92.44
          9 |        107        1.07       93.51
          . |        649        6.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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