Frequencies for first 10,000 rows of pct017f072 variable in sf12000860us35 dataset :

Noninstitut |
  ionalized |
population: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,844       98.44       98.44
          1 |        101        1.01       99.45
          2 |         22        0.22       99.67
          3 |         16        0.16       99.83
          4 |          6        0.06       99.89
          5 |          3        0.03       99.92
          7 |          1        0.01       99.93
          8 |          2        0.02       99.95
          9 |          2        0.02       99.97
         10 |          2        0.02       99.99
         17 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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