Frequencies for first 10,000 rows of pct017g048 variable in sf12000860us35 dataset :

Noninstitut |
  ionalized |
population: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,482       94.82       94.82
          1 |        286        2.86       97.68
          2 |        112        1.12       98.80
          3 |         40        0.40       99.20
          4 |         34        0.34       99.54
          5 |         16        0.16       99.70
          6 |          8        0.08       99.78
          7 |          4        0.04       99.82
          8 |          3        0.03       99.85
          9 |          3        0.03       99.88
         10 |          4        0.04       99.92
         12 |          2        0.02       99.94
         14 |          2        0.02       99.96
         16 |          1        0.01       99.97
         17 |          1        0.01       99.98
         18 |          1        0.01       99.99
         26 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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