Frequencies for first 10,000 rows of pct012g078 variable in sf12000860us22 dataset :

   75 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,880       88.80       88.80
          1 |        751        7.51       96.31
          2 |        191        1.91       98.22
          3 |         79        0.79       99.01
          4 |         31        0.31       99.32
          5 |         32        0.32       99.64
          6 |         14        0.14       99.78
          7 |          4        0.04       99.82
          8 |          6        0.06       99.88
          9 |          4        0.04       99.92
         10 |          5        0.05       99.97
         11 |          1        0.01       99.98
         14 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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