Frequencies for first 10,000 rows of pct012k114 variable in sf12010880us30 dataset :

    7 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,265       92.65       92.65
          1 |        540        5.40       98.05
          2 |        118        1.18       99.23
          3 |         47        0.47       99.70
          4 |         14        0.14       99.84
          5 |          7        0.07       99.91
          6 |          4        0.04       99.95
          8 |          2        0.02       99.97
          9 |          1        0.01       99.98
         13 |          1        0.01       99.99
         28 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017