Frequencies for first 10,000 rows of age variable in person dataset :

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         42        0.42        0.42
          1 |         53        0.53        0.95
          2 |         55        0.55        1.50
          3 |         47        0.47        1.97
          4 |         41        0.41        2.38
          5 |         52        0.52        2.90
          6 |         46        0.46        3.36
          7 |         42        0.42        3.78
          8 |         54        0.54        4.32
          9 |         53        0.53        4.85
         10 |         41        0.41        5.26
         11 |         36        0.36        5.62
         12 |         49        0.49        6.11
         13 |         61        0.61        6.72
         14 |         69        0.69        7.41
         15 |        105        1.05        8.46
         16 |        117        1.17        9.63
         17 |        167        1.67       11.30
         18 |        218        2.18       13.48
         19 |        264        2.64       16.12
         20 |        252        2.52       18.64
         21 |        250        2.50       21.14
         22 |        262        2.62       23.76
         23 |        270        2.70       26.46
         24 |        236        2.36       28.82
         25 |        231        2.31       31.13
         26 |        209        2.09       33.22
         27 |        218        2.18       35.40
         28 |        144        1.44       36.84
         29 |        175        1.75       38.59
         30 |        168        1.68       40.27
         31 |        158        1.58       41.85
         32 |        162        1.62       43.47
         33 |        160        1.60       45.07
         34 |        150        1.50       46.57
         35 |        163        1.63       48.20
         36 |        164        1.64       49.84
         37 |        137        1.37       51.21
         38 |        141        1.41       52.62
         39 |        128        1.28       53.90
         40 |        150        1.50       55.40
         41 |        149        1.49       56.89
         42 |        135        1.35       58.24
         43 |        124        1.24       59.48
         44 |        151        1.51       60.99
         45 |        138        1.38       62.37
         46 |        125        1.25       63.62
         47 |        134        1.34       64.96
         48 |        115        1.15       66.11
         49 |        126        1.26       67.37
         50 |        154        1.54       68.91
         51 |        165        1.65       70.56
         52 |        140        1.40       71.96
         53 |        143        1.43       73.39
         54 |        137        1.37       74.76
         55 |        133        1.33       76.09
         56 |        138        1.38       77.47
         57 |        150        1.50       78.97
         58 |        112        1.12       80.09
         59 |         99        0.99       81.08
         60 |        102        1.02       82.10
         61 |        103        1.03       83.13
         62 |         83        0.83       83.96
         63 |        102        1.02       84.98
         64 |        106        1.06       86.04
         65 |         75        0.75       86.79
         66 |         74        0.74       87.53
         67 |         68        0.68       88.21
         68 |         83        0.83       89.04
         69 |         71        0.71       89.75
         70 |         65        0.65       90.40
         71 |         49        0.49       90.89
         72 |         60        0.60       91.49
         73 |         48        0.48       91.97
         74 |         39        0.39       92.36
         75 |         43        0.43       92.79
         76 |         31        0.31       93.10
         77 |         30        0.30       93.40
         78 |         31        0.31       93.71
         79 |         32        0.32       94.03
         80 |         51        0.51       94.54
         81 |         27        0.27       94.81
         82 |         31        0.31       95.12
         83 |         38        0.38       95.50
         84 |         29        0.29       95.79
         85 |         24        0.24       96.03
         86 |         31        0.31       96.34
         87 |         15        0.15       96.49
         88 |         22        0.22       96.71
         89 |         18        0.18       96.89
         90 |         10        0.10       96.99
         91 |          7        0.07       97.06
         92 |          8        0.08       97.14
         93 |          4        0.04       97.18
         94 |          7        0.07       97.25
         95 |          4        0.04       97.29
         96 |          2        0.02       97.31
         97 |          1        0.01       97.32
         98 |          1        0.01       97.33
        998 |         68        0.68       98.01
        999 |        199        1.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016