Frequencies for first 10,000 rows of pct012m134 variable in sf12010860us32 dataset :

   27 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,731       97.31       97.31
          1 |        227        2.27       99.58
          2 |         28        0.28       99.86
          3 |         13        0.13       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017