Frequencies for first 10,000 rows of pct012e119 variable in sf12000860us20 dataset :

   12 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,775       97.75       97.75
          1 |        202        2.02       99.77
          2 |         17        0.17       99.94
          3 |          5        0.05       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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