Frequencies for first 10,000 rows of PCT012A204 variable in sf12000860us16 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,319       63.19       63.19
          1 |      1,401       14.01       77.20
          2 |        707        7.07       84.27
          3 |        401        4.01       88.28
          4 |        297        2.97       91.25
          5 |        213        2.13       93.38
          6 |        166        1.66       95.04
          7 |        131        1.31       96.35
          8 |         99        0.99       97.34
          9 |         56        0.56       97.90
         10 |         48        0.48       98.38
         11 |         29        0.29       98.67
         12 |         36        0.36       99.03
         13 |         18        0.18       99.21
         14 |         20        0.20       99.41
         15 |         10        0.10       99.51
         16 |          8        0.08       99.59
         17 |          7        0.07       99.66
         18 |          7        0.07       99.73
         19 |          3        0.03       99.76
         20 |          2        0.02       99.78
         21 |          3        0.03       99.81
         22 |          1        0.01       99.82
         23 |          1        0.01       99.83
         24 |          4        0.04       99.87
         25 |          1        0.01       99.88
         26 |          3        0.03       99.91
         27 |          4        0.04       99.95
         28 |          2        0.02       99.97
         33 |          2        0.02       99.99
         34 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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