Frequencies for first 10,000 rows of pct012g175 variable in sf12010880us26 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,363       83.63       83.63
          1 |        947        9.47       93.10
          2 |        300        3.00       96.10
          3 |        130        1.30       97.40
          4 |         79        0.79       98.19
          5 |         51        0.51       98.70
          6 |         35        0.35       99.05
          7 |         21        0.21       99.26
          8 |         20        0.20       99.46
          9 |         10        0.10       99.56
         10 |         14        0.14       99.70
         11 |          7        0.07       99.77
         12 |          6        0.06       99.83
         13 |          4        0.04       99.87
         14 |          3        0.03       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         17 |          1        0.01       99.93
         18 |          1        0.01       99.94
         19 |          2        0.02       99.96
         21 |          3        0.03       99.99
         28 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017