Frequencies for first 10,000 rows of pct012l066 variable in sf12000860us27 dataset :

   63 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,980       79.80       79.80
          1 |        891        8.91       88.71
          2 |        357        3.57       92.28
          3 |        199        1.99       94.27
          4 |        123        1.23       95.50
          5 |         81        0.81       96.31
          6 |         66        0.66       96.97
          7 |         46        0.46       97.43
          8 |         36        0.36       97.79
          9 |         27        0.27       98.06
         10 |         30        0.30       98.36
         11 |         23        0.23       98.59
         12 |         20        0.20       98.79
         13 |         17        0.17       98.96
         14 |         11        0.11       99.07
         15 |          7        0.07       99.14
         16 |         11        0.11       99.25
         17 |          3        0.03       99.28
         18 |          4        0.04       99.32
         19 |          7        0.07       99.39
         20 |          6        0.06       99.45
         21 |          7        0.07       99.52
         22 |          3        0.03       99.55
         23 |          1        0.01       99.56
         24 |          1        0.01       99.57
         25 |          2        0.02       99.59
         26 |          3        0.03       99.62
         27 |          3        0.03       99.65
         28 |          1        0.01       99.66
         29 |          3        0.03       99.69
         30 |          2        0.02       99.71
         31 |          1        0.01       99.72
         32 |          1        0.01       99.73
         33 |          1        0.01       99.74
         34 |          1        0.01       99.75
         35 |          3        0.03       99.78
         38 |          4        0.04       99.82
         39 |          1        0.01       99.83
         40 |          1        0.01       99.84
         41 |          2        0.02       99.86
         48 |          2        0.02       99.88
         49 |          1        0.01       99.89
         50 |          1        0.01       99.90
         55 |          2        0.02       99.92
         65 |          1        0.01       99.93
         67 |          1        0.01       99.94
         77 |          1        0.01       99.95
         99 |          1        0.01       99.96
        105 |          1        0.01       99.97
        153 |          1        0.01       99.98
        163 |          1        0.01       99.99
        185 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017