Frequencies for first 10,000 rows of pct012m009 variable in sf12010860us32 dataset :

    6 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,817       98.17       98.17
          1 |        159        1.59       99.76
          2 |         20        0.20       99.96
          3 |          2        0.02       99.98
          4 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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