Frequencies for first 10,000 rows of pct012k115 variable in sf12010880us30 dataset :

    8 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,313       93.13       93.13
          1 |        507        5.07       98.20
          2 |        116        1.16       99.36
          3 |         36        0.36       99.72
          4 |         13        0.13       99.85
          6 |          4        0.04       99.89
          7 |          6        0.06       99.95
          8 |          1        0.01       99.96
         10 |          1        0.01       99.97
         11 |          1        0.01       99.98
         13 |          1        0.01       99.99
         19 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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