Frequencies for first 10,000 rows of pct012e005 variable in sf12000860us20 dataset :

    2 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,730       97.30       97.30
          1 |        234        2.34       99.64
          2 |         32        0.32       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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