Frequencies for first 10,000 rows of pct013c022 variable in sf12000860us31 dataset :

   70 to 74 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,726       87.26       87.26
          1 |        890        8.90       96.16
          2 |        221        2.21       98.37
          3 |         78        0.78       99.15
          4 |         33        0.33       99.48
          5 |         14        0.14       99.62
          6 |         10        0.10       99.72
          7 |          7        0.07       99.79
          8 |          3        0.03       99.82
          9 |          2        0.02       99.84
         10 |          2        0.02       99.86
         12 |          2        0.02       99.88
         14 |          1        0.01       99.89
         15 |          1        0.01       99.90
         20 |          1        0.01       99.91
         27 |          2        0.02       99.93
         28 |          1        0.01       99.94
         34 |          1        0.01       99.95
         39 |          1        0.01       99.96
         44 |          1        0.01       99.97
         46 |          1        0.01       99.98
         51 |          1        0.01       99.99
        107 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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