Frequencies for first 10,000 rows of p028d016 variable in sf12000860us8 dataset :

Noninstitut |
  ionalized |
 population |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,606       96.06       96.06
          1 |        199        1.99       98.05
          2 |         74        0.74       98.79
          3 |         35        0.35       99.14
          4 |         23        0.23       99.37
          5 |         11        0.11       99.48
          6 |          7        0.07       99.55
          7 |          6        0.06       99.61
          8 |          5        0.05       99.66
          9 |          6        0.06       99.72
         10 |          1        0.01       99.73
         11 |          3        0.03       99.76
         12 |          2        0.02       99.78
         13 |          3        0.03       99.81
         14 |          3        0.03       99.84
         15 |          5        0.05       99.89
         16 |          3        0.03       99.92
         17 |          3        0.03       99.95
         19 |          2        0.02       99.97
         21 |          1        0.01       99.98
         23 |          1        0.01       99.99
         24 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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