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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         51        0.51        0.51
          1 |         78        0.78        1.29
          2 |         75        0.75        2.04
          3 |         78        0.78        2.82
          4 |         56        0.56        3.38
          5 |         75        0.75        4.13
          6 |         70        0.70        4.83
          7 |         66        0.66        5.49
          8 |         65        0.65        6.14
          9 |         82        0.82        6.96
         10 |         65        0.65        7.61
         11 |         52        0.52        8.13
         12 |         55        0.55        8.68
         13 |         70        0.70        9.38
         14 |        100        1.00       10.38
         15 |        143        1.43       11.81
         16 |        255        2.55       14.36
         17 |        276        2.76       17.12
         18 |        360        3.60       20.72
         19 |        298        2.98       23.70
         20 |        272        2.72       26.42
         21 |        289        2.89       29.31
         22 |        256        2.56       31.87
         23 |        208        2.08       33.95
         24 |        212        2.12       36.07
         25 |        196        1.96       38.03
         26 |        198        1.98       40.01
         27 |        182        1.82       41.83
         28 |        199        1.99       43.82
         29 |        171        1.71       45.53
         30 |        148        1.48       47.01
         31 |        176        1.76       48.77
         32 |        156        1.56       50.33
         33 |        148        1.48       51.81
         34 |        176        1.76       53.57
         35 |        193        1.93       55.50
         36 |        175        1.75       57.25
         37 |        191        1.91       59.16
         38 |        166        1.66       60.82
         39 |        170        1.70       62.52
         40 |        163        1.63       64.15
         41 |        164        1.64       65.79
         42 |        146        1.46       67.25
         43 |        150        1.50       68.75
         44 |        130        1.30       70.05
         45 |        124        1.24       71.29
         46 |        138        1.38       72.67
         47 |        112        1.12       73.79
         48 |        108        1.08       74.87
         49 |        105        1.05       75.92
         50 |        105        1.05       76.97
         51 |         85        0.85       77.82
         52 |        100        1.00       78.82
         53 |         97        0.97       79.79
         54 |         81        0.81       80.60
         55 |         82        0.82       81.42
         56 |         69        0.69       82.11
         57 |         60        0.60       82.71
         58 |         79        0.79       83.50
         59 |         78        0.78       84.28
         60 |         63        0.63       84.91
         61 |         43        0.43       85.34
         62 |         68        0.68       86.02
         63 |         47        0.47       86.49
         64 |         40        0.40       86.89
         65 |         63        0.63       87.52
         66 |         55        0.55       88.07
         67 |         55        0.55       88.62
         68 |         56        0.56       89.18
         69 |         49        0.49       89.67
         70 |         54        0.54       90.21
         71 |         53        0.53       90.74
         72 |         55        0.55       91.29
         73 |         41        0.41       91.70
         74 |         56        0.56       92.26
         75 |         34        0.34       92.60
         76 |         39        0.39       92.99
         77 |         49        0.49       93.48
         78 |         46        0.46       93.94
         79 |         30        0.30       94.24
         80 |         37        0.37       94.61
         81 |         27        0.27       94.88
         82 |         29        0.29       95.17
         83 |         27        0.27       95.44
         84 |         17        0.17       95.61
         85 |         27        0.27       95.88
         86 |         31        0.31       96.19
         87 |         12        0.12       96.31
         88 |         16        0.16       96.47
         89 |          8        0.08       96.55
         90 |          9        0.09       96.64
         91 |          5        0.05       96.69
         92 |          6        0.06       96.75
         93 |          1        0.01       96.76
         94 |          3        0.03       96.79
         95 |          2        0.02       96.81
         96 |          2        0.02       96.83
         97 |          2        0.02       96.85
         99 |        315        3.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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