Frequencies for first 10,000 rows of pct012m138 variable in sf12010860us32 dataset :

   31 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,740       97.40       97.40
          1 |        224        2.24       99.64
          2 |         26        0.26       99.90
          3 |          9        0.09       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017