Frequencies for first 10,000 rows of pct012m161 variable in sf12010860us32 dataset :

   54 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,837       98.37       98.37
          1 |        152        1.52       99.89
          2 |          8        0.08       99.97
          3 |          2        0.02       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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