Frequencies for first 10,000 rows of pct012m015 variable in sf12010860us32 dataset :

   12 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,820       98.20       98.20
          1 |        162        1.62       99.82
          2 |         15        0.15       99.97
          3 |          1        0.01       99.98
          4 |          1        0.01       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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