Frequencies for first 10,000 rows of pct017b072 variable in sf12000860us33 dataset :

Noninstitut |
  ionalized |
population: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,902       89.02       89.02
          1 |        388        3.88       92.90
          2 |        179        1.79       94.69
          3 |        116        1.16       95.85
          4 |         66        0.66       96.51
          5 |         44        0.44       96.95
          6 |         42        0.42       97.37
          7 |         30        0.30       97.67
          8 |         27        0.27       97.94
          9 |         21        0.21       98.15
         10 |         15        0.15       98.30
         11 |         13        0.13       98.43
         12 |         12        0.12       98.55
         13 |         13        0.13       98.68
         14 |          9        0.09       98.77
         15 |          8        0.08       98.85
         16 |         11        0.11       98.96
         17 |         11        0.11       99.07
         18 |          7        0.07       99.14
         19 |          5        0.05       99.19
         20 |          4        0.04       99.23
         21 |          8        0.08       99.31
         22 |          1        0.01       99.32
         23 |          3        0.03       99.35
         24 |          2        0.02       99.37
         25 |          1        0.01       99.38
         26 |          6        0.06       99.44
         27 |          4        0.04       99.48
         28 |          4        0.04       99.52
         29 |          1        0.01       99.53
         30 |          4        0.04       99.57
         31 |          1        0.01       99.58
         32 |          1        0.01       99.59
         33 |          3        0.03       99.62
         34 |          2        0.02       99.64
         35 |          3        0.03       99.67
         39 |          4        0.04       99.71
         41 |          2        0.02       99.73
         42 |          1        0.01       99.74
         43 |          5        0.05       99.79
         48 |          1        0.01       99.80
         49 |          2        0.02       99.82
         51 |          1        0.01       99.83
         55 |          2        0.02       99.85
         57 |          1        0.01       99.86
         60 |          2        0.02       99.88
         65 |          3        0.03       99.91
         70 |          1        0.01       99.92
         74 |          1        0.01       99.93
         76 |          1        0.01       99.94
         82 |          1        0.01       99.95
         99 |          1        0.01       99.96
        103 |          1        0.01       99.97
        116 |          1        0.01       99.98
        155 |          1        0.01       99.99
        176 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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