Frequencies for first 10,000 rows of pct017g072 variable in sf12000860us35 dataset :

Noninstitut |
  ionalized |
population: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,821       98.21       98.21
          1 |        142        1.42       99.63
          2 |         25        0.25       99.88
          4 |          2        0.02       99.90
          5 |          3        0.03       99.93
          6 |          1        0.01       99.94
          7 |          1        0.01       99.95
         15 |          1        0.01       99.96
         24 |          1        0.01       99.97
         32 |          1        0.01       99.98
         66 |          1        0.01       99.99
         69 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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