Frequencies for first 10,000 rows of pct013c018 variable in sf12000860us31 dataset :

  60 and 61 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,744       87.44       87.44
          1 |        915        9.15       96.59
          2 |        207        2.07       98.66
          3 |         69        0.69       99.35
          4 |         28        0.28       99.63
          5 |         12        0.12       99.75
          6 |          2        0.02       99.77
          7 |          4        0.04       99.81
          8 |          2        0.02       99.83
          9 |          5        0.05       99.88
         11 |          1        0.01       99.89
         13 |          1        0.01       99.90
         17 |          1        0.01       99.91
         21 |          1        0.01       99.92
         22 |          1        0.01       99.93
         27 |          1        0.01       99.94
         30 |          1        0.01       99.95
         35 |          1        0.01       99.96
         43 |          1        0.01       99.97
         55 |          1        0.01       99.98
         62 |          1        0.01       99.99
         75 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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