Frequencies for first 10,000 rows of pct017d048 variable in sf12000860us34 dataset :

Noninstitut |
  ionalized |
population: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,741       97.41       97.41
          1 |        153        1.53       98.94
          2 |         44        0.44       99.38
          3 |         23        0.23       99.61
          4 |          9        0.09       99.70
          5 |          9        0.09       99.79
          6 |          7        0.07       99.86
          7 |          2        0.02       99.88
          8 |          3        0.03       99.91
          9 |          1        0.01       99.92
         10 |          4        0.04       99.96
         11 |          2        0.02       99.98
         12 |          1        0.01       99.99
         13 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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