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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         55        0.55        0.55
          1 |         60        0.60        1.15
          2 |         71        0.71        1.86
          3 |         75        0.75        2.61
          4 |         64        0.64        3.25
          5 |         58        0.58        3.83
          6 |         64        0.64        4.47
          7 |         78        0.78        5.25
          8 |         65        0.65        5.90
          9 |         72        0.72        6.62
         10 |         57        0.57        7.19
         11 |         66        0.66        7.85
         12 |         67        0.67        8.52
         13 |         87        0.87        9.39
         14 |        128        1.28       10.67
         15 |        161        1.61       12.28
         16 |        252        2.52       14.80
         17 |        280        2.80       17.60
         18 |        354        3.54       21.14
         19 |        340        3.40       24.54
         20 |        310        3.10       27.64
         21 |        298        2.98       30.62
         22 |        268        2.68       33.30
         23 |        224        2.24       35.54
         24 |        205        2.05       37.59
         25 |        189        1.89       39.48
         26 |        190        1.90       41.38
         27 |        173        1.73       43.11
         28 |        169        1.69       44.80
         29 |        167        1.67       46.47
         30 |        195        1.95       48.42
         31 |        138        1.38       49.80
         32 |        162        1.62       51.42
         33 |        138        1.38       52.80
         34 |        138        1.38       54.18
         35 |        144        1.44       55.62
         36 |        139        1.39       57.01
         37 |        148        1.48       58.49
         38 |        158        1.58       60.07
         39 |        155        1.55       61.62
         40 |        157        1.57       63.19
         41 |        163        1.63       64.82
         42 |        154        1.54       66.36
         43 |        137        1.37       67.73
         44 |        137        1.37       69.10
         45 |        138        1.38       70.48
         46 |        144        1.44       71.92
         47 |        118        1.18       73.10
         48 |        109        1.09       74.19
         49 |        122        1.22       75.41
         50 |        106        1.06       76.47
         51 |        101        1.01       77.48
         52 |        108        1.08       78.56
         53 |         91        0.91       79.47
         54 |         74        0.74       80.21
         55 |         84        0.84       81.05
         56 |         74        0.74       81.79
         57 |         87        0.87       82.66
         58 |         72        0.72       83.38
         59 |         69        0.69       84.07
         60 |         70        0.70       84.77
         61 |         72        0.72       85.49
         62 |         49        0.49       85.98
         63 |         55        0.55       86.53
         64 |         45        0.45       86.98
         65 |         41        0.41       87.39
         66 |         54        0.54       87.93
         67 |         47        0.47       88.40
         68 |         62        0.62       89.02
         69 |         42        0.42       89.44
         70 |         37        0.37       89.81
         71 |         51        0.51       90.32
         72 |         48        0.48       90.80
         73 |         35        0.35       91.15
         74 |         50        0.50       91.65
         75 |         38        0.38       92.03
         76 |         51        0.51       92.54
         77 |         47        0.47       93.01
         78 |         42        0.42       93.43
         79 |         32        0.32       93.75
         80 |         26        0.26       94.01
         81 |         23        0.23       94.24
         82 |         29        0.29       94.53
         83 |         29        0.29       94.82
         84 |         24        0.24       95.06
         85 |         25        0.25       95.31
         86 |         25        0.25       95.56
         87 |         18        0.18       95.74
         88 |         23        0.23       95.97
         89 |         10        0.10       96.07
         90 |          3        0.03       96.10
         91 |          3        0.03       96.13
         92 |          4        0.04       96.17
         93 |          1        0.01       96.18
         94 |          1        0.01       96.19
         96 |          1        0.01       96.20
         97 |          4        0.04       96.24
         99 |        376        3.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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