Frequencies for first 10,000 rows of pct012e133 variable in sf12000860us20 dataset :

   26 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,715       97.15       97.15
          1 |        241        2.41       99.56
          2 |         34        0.34       99.90
          3 |          8        0.08       99.98
          4 |          1        0.01       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017