Frequencies for first 10,000 rows of pct013d024 variable in sf12000860us31 dataset :

   80 to 84 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,424       84.24       84.24
          1 |        732        7.32       91.56
          2 |        298        2.98       94.54
          3 |        152        1.52       96.06
          4 |         87        0.87       96.93
          5 |         55        0.55       97.48
          6 |         50        0.50       97.98
          7 |         37        0.37       98.35
          8 |         26        0.26       98.61
          9 |         17        0.17       98.78
         10 |         17        0.17       98.95
         11 |         12        0.12       99.07
         12 |          9        0.09       99.16
         13 |          9        0.09       99.25
         14 |          9        0.09       99.34
         15 |          8        0.08       99.42
         16 |          3        0.03       99.45
         17 |          3        0.03       99.48
         18 |          5        0.05       99.53
         19 |          5        0.05       99.58
         20 |          2        0.02       99.60
         21 |          7        0.07       99.67
         22 |          1        0.01       99.68
         25 |          1        0.01       99.69
         26 |          1        0.01       99.70
         27 |          1        0.01       99.71
         28 |          2        0.02       99.73
         29 |          4        0.04       99.77
         31 |          2        0.02       99.79
         32 |          1        0.01       99.80
         33 |          1        0.01       99.81
         34 |          2        0.02       99.83
         38 |          1        0.01       99.84
         39 |          4        0.04       99.88
         40 |          2        0.02       99.90
         41 |          1        0.01       99.91
         46 |          1        0.01       99.92
         60 |          1        0.01       99.93
         64 |          1        0.01       99.94
         68 |          2        0.02       99.96
        123 |          1        0.01       99.97
        132 |          1        0.01       99.98
        185 |          1        0.01       99.99
        265 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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