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

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         44        0.44        0.44
          1 |         61        0.61        1.05
          2 |         70        0.70        1.75
          3 |         72        0.72        2.47
          4 |         63        0.63        3.10
          5 |         62        0.62        3.72
          6 |         63        0.63        4.35
          7 |         71        0.71        5.06
          8 |         46        0.46        5.52
          9 |         45        0.45        5.97
         10 |         57        0.57        6.54
         11 |         53        0.53        7.07
         12 |         61        0.61        7.68
         13 |         63        0.63        8.31
         14 |         94        0.94        9.25
         15 |        142        1.42       10.67
         16 |        252        2.52       13.19
         17 |        333        3.33       16.52
         18 |        383        3.83       20.35
         19 |        430        4.30       24.65
         20 |        375        3.75       28.40
         21 |        412        4.12       32.52
         22 |        367        3.67       36.19
         23 |        307        3.07       39.26
         24 |        284        2.84       42.10
         25 |        280        2.80       44.90
         26 |        288        2.88       47.78
         27 |        229        2.29       50.07
         28 |        249        2.49       52.56
         29 |        227        2.27       54.83
         30 |        209        2.09       56.92
         31 |        202        2.02       58.94
         32 |        187        1.87       60.81
         33 |        151        1.51       62.32
         34 |        144        1.44       63.76
         35 |        167        1.67       65.43
         36 |        149        1.49       66.92
         37 |        129        1.29       68.21
         38 |        103        1.03       69.24
         39 |        117        1.17       70.41
         40 |        125        1.25       71.66
         41 |         92        0.92       72.58
         42 |         92        0.92       73.50
         43 |         82        0.82       74.32
         44 |         93        0.93       75.25
         45 |         79        0.79       76.04
         46 |         68        0.68       76.72
         47 |         63        0.63       77.35
         48 |         67        0.67       78.02
         49 |         72        0.72       78.74
         50 |         80        0.80       79.54
         51 |         75        0.75       80.29
         52 |         55        0.55       80.84
         53 |         59        0.59       81.43
         54 |         56        0.56       81.99
         55 |         94        0.94       82.93
         56 |         68        0.68       83.61
         57 |         62        0.62       84.23
         58 |         66        0.66       84.89
         59 |         65        0.65       85.54
         60 |         46        0.46       86.00
         61 |         48        0.48       86.48
         62 |         52        0.52       87.00
         63 |         36        0.36       87.36
         64 |         59        0.59       87.95
         65 |         46        0.46       88.41
         66 |         40        0.40       88.81
         67 |         46        0.46       89.27
         68 |         43        0.43       89.70
         69 |         52        0.52       90.22
         70 |         43        0.43       90.65
         71 |         39        0.39       91.04
         72 |         34        0.34       91.38
         73 |         48        0.48       91.86
         74 |         35        0.35       92.21
         75 |         31        0.31       92.52
         76 |         41        0.41       92.93
         77 |         29        0.29       93.22
         78 |         23        0.23       93.45
         79 |         24        0.24       93.69
         80 |         40        0.40       94.09
         81 |         22        0.22       94.31
         82 |         22        0.22       94.53
         83 |         17        0.17       94.70
         84 |         26        0.26       94.96
         85 |          8        0.08       95.04
         86 |         12        0.12       95.16
         87 |          1        0.01       95.17
         88 |          8        0.08       95.25
         89 |          6        0.06       95.31
         90 |          2        0.02       95.33
         91 |          6        0.06       95.39
         92 |          2        0.02       95.41
         93 |          3        0.03       95.44
         94 |          2        0.02       95.46
         99 |        454        4.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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