Frequencies for first 10,000 rows of pct0120099 variable in sf12010860us17 dataset :

   96 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,979       69.79       69.79
          1 |      1,416       14.16       83.95
          2 |        670        6.70       90.65
          3 |        364        3.64       94.29
          4 |        217        2.17       96.46
          5 |        146        1.46       97.92
          6 |         73        0.73       98.65
          7 |         50        0.50       99.15
          8 |         25        0.25       99.40
          9 |         16        0.16       99.56
         10 |         14        0.14       99.70
         11 |         13        0.13       99.83
         12 |          6        0.06       99.89
         13 |          4        0.04       99.93
         14 |          1        0.01       99.94
         15 |          4        0.04       99.98
         16 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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