Frequencies for age variable in person dataset :

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          4        0.37        0.37
          1 |          1        0.09        0.46
          2 |          4        0.37        0.84
          3 |          4        0.37        1.21
          4 |          1        0.09        1.30
          5 |          2        0.19        1.49
          6 |          4        0.37        1.86
          7 |          3        0.28        2.14
          8 |          3        0.28        2.41
          9 |          4        0.37        2.79
         10 |          3        0.28        3.06
         11 |          6        0.56        3.62
         13 |          4        0.37        3.99
         14 |         11        1.02        5.01
         15 |         18        1.67        6.69
         16 |         18        1.67        8.36
         17 |         28        2.60       10.96
         18 |         32        2.97       13.93
         19 |         48        4.46       18.38
         20 |         41        3.81       22.19
         21 |         32        2.97       25.16
         22 |         30        2.79       27.95
         23 |         37        3.44       31.38
         24 |         36        3.34       34.73
         25 |         23        2.14       36.86
         26 |         26        2.41       39.28
         27 |         20        1.86       41.13
         28 |         28        2.60       43.73
         29 |         15        1.39       45.13
         30 |         20        1.86       46.98
         31 |         13        1.21       48.19
         32 |         22        2.04       50.23
         33 |         18        1.67       51.90
         34 |         17        1.58       53.48
         35 |         10        0.93       54.41
         36 |         12        1.11       55.52
         37 |         16        1.49       57.01
         38 |         14        1.30       58.31
         39 |         12        1.11       59.42
         40 |         20        1.86       61.28
         41 |         12        1.11       62.40
         42 |         13        1.21       63.60
         43 |         14        1.30       64.90
         44 |         17        1.58       66.48
         45 |         14        1.30       67.78
         46 |         10        0.93       68.71
         47 |          6        0.56       69.27
         48 |          9        0.84       70.10
         49 |          7        0.65       70.75
         50 |         13        1.21       71.96
         51 |         11        1.02       72.98
         52 |         13        1.21       74.19
         53 |         13        1.21       75.39
         54 |          6        0.56       75.95
         55 |          7        0.65       76.60
         56 |          7        0.65       77.25
         57 |          8        0.74       77.99
         58 |         15        1.39       79.39
         59 |          8        0.74       80.13
         60 |          7        0.65       80.78
         61 |          9        0.84       81.62
         62 |          8        0.74       82.36
         63 |          6        0.56       82.92
         64 |          4        0.37       83.29
         65 |          6        0.56       83.84
         66 |          9        0.84       84.68
         67 |          6        0.56       85.24
         68 |          6        0.56       85.79
         69 |          2        0.19       85.98
         70 |          4        0.37       86.35
         71 |          5        0.46       86.82
         72 |          8        0.74       87.56
         73 |          7        0.65       88.21
         74 |          3        0.28       88.49
         75 |          5        0.46       88.95
         76 |          1        0.09       89.04
         77 |          3        0.28       89.32
         78 |          2        0.19       89.51
         79 |          5        0.46       89.97
         80 |          4        0.37       90.34
         81 |          4        0.37       90.71
         83 |          2        0.19       90.90
         84 |          4        0.37       91.27
         88 |          2        0.19       91.46
         90 |          2        0.19       91.64
         92 |          1        0.09       91.74
         93 |          1        0.09       91.83
         99 |         88        8.17      100.00
------------+-----------------------------------
      Total |      1,077      100.00

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