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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         32        0.32        0.32
          1 |         73        0.73        1.05
          2 |         70        0.70        1.75
          3 |         55        0.55        2.30
          4 |         52        0.52        2.82
          5 |         55        0.55        3.37
          6 |         53        0.53        3.90
          7 |         55        0.55        4.45
          8 |         49        0.49        4.94
          9 |         56        0.56        5.50
         10 |         46        0.46        5.96
         11 |         57        0.57        6.53
         12 |         61        0.61        7.14
         13 |         71        0.71        7.85
         14 |        111        1.11        8.96
         15 |        135        1.35       10.31
         16 |        194        1.94       12.25
         17 |        246        2.46       14.71
         18 |        291        2.91       17.62
         19 |        338        3.38       21.00
         20 |        335        3.35       24.35
         21 |        271        2.71       27.06
         22 |        282        2.82       29.88
         23 |        246        2.46       32.34
         24 |        271        2.71       35.05
         25 |        219        2.19       37.24
         26 |        190        1.90       39.14
         27 |        196        1.96       41.10
         28 |        154        1.54       42.64
         29 |        152        1.52       44.16
         30 |        166        1.66       45.82
         31 |        164        1.64       47.46
         32 |        162        1.62       49.08
         33 |        143        1.43       50.51
         34 |        173        1.73       52.24
         35 |        145        1.45       53.69
         36 |        138        1.38       55.07
         37 |        139        1.39       56.46
         38 |        131        1.31       57.77
         39 |        136        1.36       59.13
         40 |        157        1.57       60.70
         41 |        140        1.40       62.10
         42 |        148        1.48       63.58
         43 |        146        1.46       65.04
         44 |        153        1.53       66.57
         45 |        129        1.29       67.86
         46 |        140        1.40       69.26
         47 |        143        1.43       70.69
         48 |        149        1.49       72.18
         49 |        133        1.33       73.51
         50 |        138        1.38       74.89
         51 |        117        1.17       76.06
         52 |        108        1.08       77.14
         53 |        100        1.00       78.14
         54 |         85        0.85       78.99
         55 |        104        1.04       80.03
         56 |         97        0.97       81.00
         57 |         82        0.82       81.82
         58 |         87        0.87       82.69
         59 |         69        0.69       83.38
         60 |         59        0.59       83.97
         61 |         70        0.70       84.67
         62 |         77        0.77       85.44
         63 |         72        0.72       86.16
         64 |         69        0.69       86.85
         65 |         72        0.72       87.57
         66 |         56        0.56       88.13
         67 |         47        0.47       88.60
         68 |         48        0.48       89.08
         69 |         60        0.60       89.68
         70 |         47        0.47       90.15
         71 |         41        0.41       90.56
         72 |         46        0.46       91.02
         73 |         41        0.41       91.43
         74 |         50        0.50       91.93
         75 |         34        0.34       92.27
         76 |         37        0.37       92.64
         77 |         38        0.38       93.02
         78 |         42        0.42       93.44
         79 |         21        0.21       93.65
         80 |         38        0.38       94.03
         81 |         34        0.34       94.37
         82 |         35        0.35       94.72
         83 |         23        0.23       94.95
         84 |         20        0.20       95.15
         85 |         25        0.25       95.40
         86 |         23        0.23       95.63
         87 |         10        0.10       95.73
         88 |         14        0.14       95.87
         89 |          7        0.07       95.94
         90 |          6        0.06       96.00
         91 |          5        0.05       96.05
         92 |          2        0.02       96.07
         93 |          5        0.05       96.12
         94 |          2        0.02       96.14
         95 |          1        0.01       96.15
         96 |          1        0.01       96.16
         99 |        384        3.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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