Frequencies for first 10,000 rows of pct012m036 variable in sf12010860us32 dataset :

   33 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,765       97.65       97.65
          1 |        199        1.99       99.64
          2 |         28        0.28       99.92
          3 |          4        0.04       99.96
          4 |          3        0.03       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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