Frequencies for first 10,000 rows of PCT012B093 variable in sf12000860us17 dataset :

   90 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,843       88.43       88.43
          1 |        657        6.57       95.00
          2 |        227        2.27       97.27
          3 |        109        1.09       98.36
          4 |         52        0.52       98.88
          5 |         34        0.34       99.22
          6 |         20        0.20       99.42
          7 |         19        0.19       99.61
          8 |          7        0.07       99.68
          9 |         12        0.12       99.80
         10 |          8        0.08       99.88
         11 |          2        0.02       99.90
         12 |          2        0.02       99.92
         13 |          2        0.02       99.94
         14 |          1        0.01       99.95
         15 |          1        0.01       99.96
         16 |          1        0.01       99.97
         19 |          1        0.01       99.98
         20 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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