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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         53        0.53        0.53
          1 |         77        0.77        1.30
          2 |         88        0.88        2.18
          3 |         73        0.73        2.91
          4 |         77        0.77        3.68
          5 |         65        0.65        4.33
          6 |         63        0.63        4.96
          7 |         71        0.71        5.67
          8 |         53        0.53        6.20
          9 |         53        0.53        6.73
         10 |         52        0.52        7.25
         11 |         48        0.48        7.73
         12 |         62        0.62        8.35
         13 |         66        0.66        9.01
         14 |        115        1.15       10.16
         15 |        145        1.45       11.61
         16 |        264        2.64       14.25
         17 |        280        2.80       17.05
         18 |        312        3.12       20.17
         19 |        370        3.70       23.87
         20 |        303        3.03       26.90
         21 |        318        3.18       30.08
         22 |        315        3.15       33.23
         23 |        232        2.32       35.55
         24 |        251        2.51       38.06
         25 |        277        2.77       40.83
         26 |        232        2.32       43.15
         27 |        246        2.46       45.61
         28 |        225        2.25       47.86
         29 |        221        2.21       50.07
         30 |        199        1.99       52.06
         31 |        204        2.04       54.10
         32 |        217        2.17       56.27
         33 |        188        1.88       58.15
         34 |        180        1.80       59.95
         35 |        181        1.81       61.76
         36 |        173        1.73       63.49
         37 |        169        1.69       65.18
         38 |        160        1.60       66.78
         39 |        131        1.31       68.09
         40 |        109        1.09       69.18
         41 |        131        1.31       70.49
         42 |        107        1.07       71.56
         43 |        128        1.28       72.84
         44 |        115        1.15       73.99
         45 |        113        1.13       75.12
         46 |         83        0.83       75.95
         47 |        104        1.04       76.99
         48 |         99        0.99       77.98
         49 |         84        0.84       78.82
         50 |         76        0.76       79.58
         51 |         68        0.68       80.26
         52 |         66        0.66       80.92
         53 |         56        0.56       81.48
         54 |         66        0.66       82.14
         55 |         43        0.43       82.57
         56 |         59        0.59       83.16
         57 |         50        0.50       83.66
         58 |         32        0.32       83.98
         59 |         56        0.56       84.54
         60 |         56        0.56       85.10
         61 |         53        0.53       85.63
         62 |         59        0.59       86.22
         63 |         50        0.50       86.72
         64 |         49        0.49       87.21
         65 |         49        0.49       87.70
         66 |         45        0.45       88.15
         67 |         58        0.58       88.73
         68 |         38        0.38       89.11
         69 |         50        0.50       89.61
         70 |         52        0.52       90.13
         71 |         55        0.55       90.68
         72 |         47        0.47       91.15
         73 |         37        0.37       91.52
         74 |         59        0.59       92.11
         75 |         44        0.44       92.55
         76 |         39        0.39       92.94
         77 |         36        0.36       93.30
         78 |         30        0.30       93.60
         79 |         34        0.34       93.94
         80 |         39        0.39       94.33
         81 |         24        0.24       94.57
         82 |         29        0.29       94.86
         83 |         21        0.21       95.07
         84 |         17        0.17       95.24
         85 |         21        0.21       95.45
         86 |         10        0.10       95.55
         87 |         18        0.18       95.73
         88 |          9        0.09       95.82
         89 |          4        0.04       95.86
         90 |          7        0.07       95.93
         91 |          3        0.03       95.96
         92 |          6        0.06       96.02
         95 |          2        0.02       96.04
         97 |          2        0.02       96.06
         99 |        394        3.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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