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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         45        0.45        0.45
          1 |         56        0.56        1.01
          2 |         54        0.54        1.55
          3 |         62        0.62        2.17
          4 |         45        0.45        2.62
          5 |         58        0.58        3.20
          6 |         54        0.54        3.74
          7 |         56        0.56        4.30
          8 |         49        0.49        4.79
          9 |         64        0.64        5.43
         10 |         67        0.67        6.10
         11 |         61        0.61        6.71
         12 |         62        0.62        7.33
         13 |         75        0.75        8.08
         14 |         99        0.99        9.07
         15 |        140        1.40       10.47
         16 |        260        2.60       13.07
         17 |        306        3.06       16.13
         18 |        343        3.43       19.56
         19 |        328        3.28       22.84
         20 |        295        2.95       25.79
         21 |        306        3.06       28.85
         22 |        283        2.83       31.68
         23 |        237        2.37       34.05
         24 |        218        2.18       36.23
         25 |        196        1.96       38.19
         26 |        192        1.92       40.11
         27 |        183        1.83       41.94
         28 |        156        1.56       43.50
         29 |        176        1.76       45.26
         30 |        173        1.73       46.99
         31 |        169        1.69       48.68
         32 |        152        1.52       50.20
         33 |        149        1.49       51.69
         34 |        162        1.62       53.31
         35 |        144        1.44       54.75
         36 |        139        1.39       56.14
         37 |        153        1.53       57.67
         38 |        147        1.47       59.14
         39 |        152        1.52       60.66
         40 |        134        1.34       62.00
         41 |        137        1.37       63.37
         42 |        144        1.44       64.81
         43 |        154        1.54       66.35
         44 |        136        1.36       67.71
         45 |        144        1.44       69.15
         46 |        149        1.49       70.64
         47 |        130        1.30       71.94
         48 |        116        1.16       73.10
         49 |        114        1.14       74.24
         50 |        107        1.07       75.31
         51 |        104        1.04       76.35
         52 |        100        1.00       77.35
         53 |         93        0.93       78.28
         54 |         96        0.96       79.24
         55 |         90        0.90       80.14
         56 |         79        0.79       80.93
         57 |         80        0.80       81.73
         58 |         83        0.83       82.56
         59 |         65        0.65       83.21
         60 |         74        0.74       83.95
         61 |         66        0.66       84.61
         62 |         67        0.67       85.28
         63 |         67        0.67       85.95
         64 |         64        0.64       86.59
         65 |         56        0.56       87.15
         66 |         30        0.30       87.45
         67 |         46        0.46       87.91
         68 |         44        0.44       88.35
         69 |         49        0.49       88.84
         70 |         47        0.47       89.31
         71 |         55        0.55       89.86
         72 |         53        0.53       90.39
         73 |         42        0.42       90.81
         74 |         36        0.36       91.17
         75 |         46        0.46       91.63
         76 |         41        0.41       92.04
         77 |         54        0.54       92.58
         78 |         40        0.40       92.98
         79 |         38        0.38       93.36
         80 |         36        0.36       93.72
         81 |         28        0.28       94.00
         82 |         35        0.35       94.35
         83 |         28        0.28       94.63
         84 |         18        0.18       94.81
         85 |         18        0.18       94.99
         86 |         20        0.20       95.19
         87 |         14        0.14       95.33
         88 |         12        0.12       95.45
         89 |          6        0.06       95.51
         90 |         11        0.11       95.62
         91 |          6        0.06       95.68
         92 |          4        0.04       95.72
         93 |          6        0.06       95.78
         94 |          4        0.04       95.82
         95 |          2        0.02       95.84
         96 |          1        0.01       95.85
         97 |          1        0.01       95.86
         99 |        414        4.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016