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

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         37        0.37        0.37
          1 |         60        0.60        0.97
          2 |         78        0.78        1.75
          3 |         73        0.73        2.48
          4 |         63        0.63        3.11
          5 |         77        0.77        3.88
          6 |         75        0.75        4.63
          7 |         64        0.64        5.27
          8 |         74        0.74        6.01
          9 |         53        0.53        6.54
         10 |         68        0.68        7.22
         11 |         53        0.53        7.75
         12 |         65        0.65        8.40
         13 |         89        0.89        9.29
         14 |        140        1.40       10.69
         15 |        219        2.19       12.88
         16 |        354        3.54       16.42
         17 |        437        4.37       20.79
         18 |        475        4.75       25.54
         19 |        440        4.40       29.94
         20 |        400        4.00       33.94
         21 |        399        3.99       37.93
         22 |        337        3.37       41.30
         23 |        340        3.40       44.70
         24 |        269        2.69       47.39
         25 |        275        2.75       50.14
         26 |        248        2.48       52.62
         27 |        191        1.91       54.53
         28 |        207        2.07       56.60
         29 |        214        2.14       58.74
         30 |        163        1.63       60.37
         31 |        180        1.80       62.17
         32 |        158        1.58       63.75
         33 |        154        1.54       65.29
         34 |        132        1.32       66.61
         35 |        122        1.22       67.83
         36 |        115        1.15       68.98
         37 |         86        0.86       69.84
         38 |        110        1.10       70.94
         39 |         97        0.97       71.91
         40 |        112        1.12       73.03
         41 |         89        0.89       73.92
         42 |         86        0.86       74.78
         43 |         95        0.95       75.73
         44 |         79        0.79       76.52
         45 |         88        0.88       77.40
         46 |         86        0.86       78.26
         47 |         79        0.79       79.05
         48 |         98        0.98       80.03
         49 |         79        0.79       80.82
         50 |         84        0.84       81.66
         51 |         68        0.68       82.34
         52 |         93        0.93       83.27
         53 |         81        0.81       84.08
         54 |         79        0.79       84.87
         55 |         66        0.66       85.53
         56 |         59        0.59       86.12
         57 |         72        0.72       86.84
         58 |         65        0.65       87.49
         59 |         58        0.58       88.07
         60 |         50        0.50       88.57
         61 |         73        0.73       89.30
         62 |         65        0.65       89.95
         63 |         75        0.75       90.70
         64 |         46        0.46       91.16
         65 |         70        0.70       91.86
         66 |         53        0.53       92.39
         67 |         56        0.56       92.95
         68 |         46        0.46       93.41
         69 |         45        0.45       93.86
         70 |         45        0.45       94.31
         71 |         40        0.40       94.71
         72 |         38        0.38       95.09
         73 |         44        0.44       95.53
         74 |         34        0.34       95.87
         75 |         29        0.29       96.16
         76 |         24        0.24       96.40
         77 |         21        0.21       96.61
         78 |         34        0.34       96.95
         79 |         28        0.28       97.23
         80 |         21        0.21       97.44
         81 |         12        0.12       97.56
         82 |         14        0.14       97.70
         83 |         19        0.19       97.89
         84 |         23        0.23       98.12
         85 |          7        0.07       98.19
         86 |          9        0.09       98.28
         87 |          6        0.06       98.34
         88 |          6        0.06       98.40
         89 |          5        0.05       98.45
         90 |          4        0.04       98.49
         91 |          3        0.03       98.52
         92 |          1        0.01       98.53
         93 |          4        0.04       98.57
         96 |          1        0.01       98.58
         99 |        142        1.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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