Frequencies for first 10,000 rows of pct012e012 variable in sf12000860us20 dataset :

    9 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,749       97.49       97.49
          1 |        214        2.14       99.63
          2 |         31        0.31       99.94
          3 |          5        0.05       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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