Frequencies for first 10,000 rows of pct012o003 variable in sf12010860us34 dataset :

    Under 1 |
       year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,249       52.49       52.49
          1 |      1,322       13.22       65.71
          2 |        716        7.16       72.87
          3 |        442        4.42       77.29
          4 |        364        3.64       80.93
          5 |        271        2.71       83.64
          6 |        252        2.52       86.16
          7 |        179        1.79       87.95
          8 |        160        1.60       89.55
          9 |        147        1.47       91.02
         10 |        128        1.28       92.30
         11 |         98        0.98       93.28
         12 |         81        0.81       94.09
         13 |         99        0.99       95.08
         14 |         64        0.64       95.72
         15 |         57        0.57       96.29
         16 |         47        0.47       96.76
         17 |         41        0.41       97.17
         18 |         38        0.38       97.55
         19 |         23        0.23       97.78
         20 |         37        0.37       98.15
         21 |         28        0.28       98.43
         22 |         22        0.22       98.65
         23 |         19        0.19       98.84
         24 |         15        0.15       98.99
         25 |         10        0.10       99.09
         26 |          9        0.09       99.18
         27 |         12        0.12       99.30
         28 |          6        0.06       99.36
         29 |         11        0.11       99.47
         30 |          5        0.05       99.52
         31 |          7        0.07       99.59
         32 |         10        0.10       99.69
         33 |          2        0.02       99.71
         34 |          6        0.06       99.77
         35 |          3        0.03       99.80
         36 |          4        0.04       99.84
         37 |          2        0.02       99.86
         38 |          2        0.02       99.88
         39 |          3        0.03       99.91
         40 |          1        0.01       99.92
         41 |          2        0.02       99.94
         42 |          1        0.01       99.95
         47 |          2        0.02       99.97
         48 |          1        0.01       99.98
         50 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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