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

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         35        0.35        0.35
          1 |         51        0.51        0.86
          2 |         73        0.73        1.59
          3 |         73        0.73        2.32
          4 |         57        0.57        2.89
          5 |         55        0.55        3.44
          6 |         62        0.62        4.06
          7 |         61        0.61        4.67
          8 |         47        0.47        5.14
          9 |         58        0.58        5.72
         10 |         49        0.49        6.21
         11 |         38        0.38        6.59
         12 |         44        0.44        7.03
         13 |         55        0.55        7.58
         14 |        114        1.14        8.72
         15 |        183        1.83       10.55
         16 |        364        3.64       14.19
         17 |        446        4.46       18.65
         18 |        534        5.34       23.99
         19 |        466        4.66       28.65
         20 |        453        4.53       33.18
         21 |        414        4.14       37.32
         22 |        388        3.88       41.20
         23 |        326        3.26       44.46
         24 |        321        3.21       47.67
         25 |        297        2.97       50.64
         26 |        286        2.86       53.50
         27 |        246        2.46       55.96
         28 |        230        2.30       58.26
         29 |        195        1.95       60.21
         30 |        226        2.26       62.47
         31 |        169        1.69       64.16
         32 |        182        1.82       65.98
         33 |        139        1.39       67.37
         34 |        155        1.55       68.92
         35 |        135        1.35       70.27
         36 |        120        1.20       71.47
         37 |        117        1.17       72.64
         38 |        116        1.16       73.80
         39 |         94        0.94       74.74
         40 |         92        0.92       75.66
         41 |         99        0.99       76.65
         42 |         92        0.92       77.57
         43 |         73        0.73       78.30
         44 |         99        0.99       79.29
         45 |         73        0.73       80.02
         46 |         96        0.96       80.98
         47 |         72        0.72       81.70
         48 |         76        0.76       82.46
         49 |         83        0.83       83.29
         50 |         67        0.67       83.96
         51 |         59        0.59       84.55
         52 |         81        0.81       85.36
         53 |         75        0.75       86.11
         54 |         68        0.68       86.79
         55 |         47        0.47       87.26
         56 |         67        0.67       87.93
         57 |         58        0.58       88.51
         58 |         80        0.80       89.31
         59 |         60        0.60       89.91
         60 |         60        0.60       90.51
         61 |         50        0.50       91.01
         62 |         54        0.54       91.55
         63 |         52        0.52       92.07
         64 |         49        0.49       92.56
         65 |         49        0.49       93.05
         66 |         55        0.55       93.60
         67 |         36        0.36       93.96
         68 |         43        0.43       94.39
         69 |         29        0.29       94.68
         70 |         30        0.30       94.98
         71 |         39        0.39       95.37
         72 |         31        0.31       95.68
         73 |         32        0.32       96.00
         74 |         30        0.30       96.30
         75 |         46        0.46       96.76
         76 |         24        0.24       97.00
         77 |         19        0.19       97.19
         78 |         29        0.29       97.48
         79 |         30        0.30       97.78
         80 |         19        0.19       97.97
         81 |         18        0.18       98.15
         82 |         17        0.17       98.32
         83 |         13        0.13       98.45
         84 |         13        0.13       98.58
         85 |          4        0.04       98.62
         86 |          5        0.05       98.67
         87 |          9        0.09       98.76
         88 |          4        0.04       98.80
         89 |          5        0.05       98.85
         90 |          5        0.05       98.90
         91 |          1        0.01       98.91
         92 |          1        0.01       98.92
         94 |          1        0.01       98.93
         95 |          1        0.01       98.94
         99 |        106        1.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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