Frequencies for first 10,000 rows of PCT012B095 variable in sf12000860us17 dataset :

   92 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,156       91.56       91.56
          1 |        553        5.53       97.09
          2 |        146        1.46       98.55
          3 |         58        0.58       99.13
          4 |         34        0.34       99.47
          5 |         18        0.18       99.65
          6 |         11        0.11       99.76
          7 |          6        0.06       99.82
          8 |          7        0.07       99.89
          9 |          5        0.05       99.94
         10 |          1        0.01       99.95
         11 |          1        0.01       99.96
         12 |          2        0.02       99.98
         13 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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