Frequencies for first 10,000 rows of PCT012B199 variable in sf12000860us17 dataset :

   92 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,371       83.71       83.71
          1 |        801        8.01       91.72
          2 |        323        3.23       94.95
          3 |        138        1.38       96.33
          4 |         96        0.96       97.29
          5 |         60        0.60       97.89
          6 |         39        0.39       98.28
          7 |         35        0.35       98.63
          8 |         19        0.19       98.82
          9 |         21        0.21       99.03
         10 |         13        0.13       99.16
         11 |         15        0.15       99.31
         12 |          9        0.09       99.40
         13 |          6        0.06       99.46
         14 |          6        0.06       99.52
         15 |          7        0.07       99.59
         16 |          7        0.07       99.66
         17 |          6        0.06       99.72
         18 |          5        0.05       99.77
         19 |          3        0.03       99.80
         20 |          3        0.03       99.83
         21 |          1        0.01       99.84
         22 |          2        0.02       99.86
         23 |          3        0.03       99.89
         24 |          1        0.01       99.90
         25 |          1        0.01       99.91
         28 |          1        0.01       99.92
         29 |          2        0.02       99.94
         31 |          1        0.01       99.95
         32 |          1        0.01       99.96
         35 |          1        0.01       99.97
         36 |          2        0.02       99.99
         41 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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