Frequencies for first 10,000 rows of pct012e130 variable in sf12000860us20 dataset :

   23 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,656       96.56       96.56
          1 |        289        2.89       99.45
          2 |         39        0.39       99.84
          3 |         10        0.10       99.94
          4 |          4        0.04       99.98
          5 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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