Frequencies for first 10,000 rows of pct012l091 variable in sf12010860us31 dataset :

   88 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,417       94.17       94.17
          1 |        388        3.88       98.05
          2 |         95        0.95       99.00
          3 |         43        0.43       99.43
          4 |         17        0.17       99.60
          5 |          9        0.09       99.69
          6 |         13        0.13       99.82
          7 |          5        0.05       99.87
          8 |          2        0.02       99.89
          9 |          2        0.02       99.91
         10 |          1        0.01       99.92
         11 |          1        0.01       99.93
         12 |          2        0.02       99.95
         13 |          1        0.01       99.96
         15 |          1        0.01       99.97
         19 |          1        0.01       99.98
         49 |          1        0.01       99.99
         52 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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