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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         27        0.27        0.27
          1 |         51        0.51        0.78
          2 |         50        0.50        1.28
          3 |         61        0.61        1.89
          4 |         43        0.43        2.32
          5 |         57        0.57        2.89
          6 |         61        0.61        3.50
          7 |         70        0.70        4.20
          8 |         45        0.45        4.65
          9 |         59        0.59        5.24
         10 |         72        0.72        5.96
         11 |         53        0.53        6.49
         12 |         65        0.65        7.14
         13 |         66        0.66        7.80
         14 |         62        0.62        8.42
         15 |         83        0.83        9.25
         16 |        143        1.43       10.68
         17 |        189        1.89       12.57
         18 |        271        2.71       15.28
         19 |        264        2.64       17.92
         20 |        271        2.71       20.63
         21 |        289        2.89       23.52
         22 |        256        2.56       26.08
         23 |        228        2.28       28.36
         24 |        231        2.31       30.67
         25 |        245        2.45       33.12
         26 |        205        2.05       35.17
         27 |        194        1.94       37.11
         28 |        191        1.91       39.02
         29 |        183        1.83       40.85
         30 |        172        1.72       42.57
         31 |        161        1.61       44.18
         32 |        156        1.56       45.74
         33 |        151        1.51       47.25
         34 |        151        1.51       48.76
         35 |        156        1.56       50.32
         36 |        128        1.28       51.60
         37 |        111        1.11       52.71
         38 |        154        1.54       54.25
         39 |        136        1.36       55.61
         40 |        121        1.21       56.82
         41 |        142        1.42       58.24
         42 |        134        1.34       59.58
         43 |        147        1.47       61.05
         44 |        140        1.40       62.45
         45 |        139        1.39       63.84
         46 |        119        1.19       65.03
         47 |        122        1.22       66.25
         48 |        143        1.43       67.68
         49 |        147        1.47       69.15
         50 |        119        1.19       70.34
         51 |        132        1.32       71.66
         52 |        136        1.36       73.02
         53 |        148        1.48       74.50
         54 |        130        1.30       75.80
         55 |        137        1.37       77.17
         56 |        114        1.14       78.31
         57 |        116        1.16       79.47
         58 |        123        1.23       80.70
         59 |        114        1.14       81.84
         60 |        105        1.05       82.89
         61 |         91        0.91       83.80
         62 |         81        0.81       84.61
         63 |         93        0.93       85.54
         64 |         83        0.83       86.37
         65 |         94        0.94       87.31
         66 |         90        0.90       88.21
         67 |         64        0.64       88.85
         68 |         69        0.69       89.54
         69 |         58        0.58       90.12
         70 |         60        0.60       90.72
         71 |         62        0.62       91.34
         72 |         49        0.49       91.83
         73 |         50        0.50       92.33
         74 |         34        0.34       92.67
         75 |         37        0.37       93.04
         76 |         39        0.39       93.43
         77 |         48        0.48       93.91
         78 |         27        0.27       94.18
         79 |         40        0.40       94.58
         80 |         30        0.30       94.88
         81 |         32        0.32       95.20
         82 |         34        0.34       95.54
         83 |         36        0.36       95.90
         84 |         24        0.24       96.14
         85 |         25        0.25       96.39
         86 |         15        0.15       96.54
         87 |         21        0.21       96.75
         88 |         11        0.11       96.86
         89 |         12        0.12       96.98
         90 |         14        0.14       97.12
         91 |          5        0.05       97.17
         92 |          8        0.08       97.25
         93 |          4        0.04       97.29
         94 |          1        0.01       97.30
         95 |          8        0.08       97.38
         96 |          2        0.02       97.40
         97 |          1        0.01       97.41
         98 |          1        0.01       97.42
        998 |         60        0.60       98.02
        999 |        198        1.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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