Frequencies for first 10,000 rows of pct012e139 variable in sf12010860us24 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,684       96.84       96.84
          1 |        261        2.61       99.45
          2 |         46        0.46       99.91
          3 |          8        0.08       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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