Frequencies for first 10,000 rows of pct012e116 variable in sf12000860us20 dataset :

    9 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,740       97.40       97.40
          1 |        237        2.37       99.77
          2 |         20        0.20       99.97
          3 |          1        0.01       99.98
          5 |          1        0.01       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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