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

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         43        0.43        0.43
          1 |         40        0.40        0.83
          2 |         71        0.71        1.54
          3 |         72        0.72        2.26
          4 |         59        0.59        2.85
          5 |         63        0.63        3.48
          6 |         58        0.58        4.06
          7 |         59        0.59        4.65
          8 |         40        0.40        5.05
          9 |         63        0.63        5.68
         10 |         54        0.54        6.22
         11 |         57        0.57        6.79
         12 |         51        0.51        7.30
         13 |         74        0.74        8.04
         14 |        107        1.07        9.11
         15 |        149        1.49       10.60
         16 |        269        2.69       13.29
         17 |        315        3.15       16.44
         18 |        380        3.80       20.24
         19 |        431        4.31       24.55
         20 |        414        4.14       28.69
         21 |        378        3.78       32.47
         22 |        359        3.59       36.06
         23 |        338        3.38       39.44
         24 |        316        3.16       42.60
         25 |        311        3.11       45.71
         26 |        262        2.62       48.33
         27 |        272        2.72       51.05
         28 |        215        2.15       53.20
         29 |        229        2.29       55.49
         30 |        186        1.86       57.35
         31 |        168        1.68       59.03
         32 |        154        1.54       60.57
         33 |        181        1.81       62.38
         34 |        152        1.52       63.90
         35 |        143        1.43       65.33
         36 |        152        1.52       66.85
         37 |        136        1.36       68.21
         38 |        115        1.15       69.36
         39 |        103        1.03       70.39
         40 |        107        1.07       71.46
         41 |        126        1.26       72.72
         42 |        108        1.08       73.80
         43 |         86        0.86       74.66
         44 |         87        0.87       75.53
         45 |         97        0.97       76.50
         46 |         74        0.74       77.24
         47 |         71        0.71       77.95
         48 |         82        0.82       78.77
         49 |         60        0.60       79.37
         50 |         63        0.63       80.00
         51 |         55        0.55       80.55
         52 |         57        0.57       81.12
         53 |         65        0.65       81.77
         54 |         59        0.59       82.36
         55 |         67        0.67       83.03
         56 |         54        0.54       83.57
         57 |         59        0.59       84.16
         58 |         70        0.70       84.86
         59 |         53        0.53       85.39
         60 |         57        0.57       85.96
         61 |         62        0.62       86.58
         62 |         44        0.44       87.02
         63 |         49        0.49       87.51
         64 |         60        0.60       88.11
         65 |         63        0.63       88.74
         66 |         44        0.44       89.18
         67 |         47        0.47       89.65
         68 |         47        0.47       90.12
         69 |         51        0.51       90.63
         70 |         36        0.36       90.99
         71 |         39        0.39       91.38
         72 |         32        0.32       91.70
         73 |         26        0.26       91.96
         74 |         37        0.37       92.33
         75 |         35        0.35       92.68
         76 |         36        0.36       93.04
         77 |         26        0.26       93.30
         78 |         31        0.31       93.61
         79 |         33        0.33       93.94
         80 |         23        0.23       94.17
         81 |         15        0.15       94.32
         82 |         15        0.15       94.47
         83 |         18        0.18       94.65
         84 |         17        0.17       94.82
         85 |          5        0.05       94.87
         86 |          9        0.09       94.96
         87 |         15        0.15       95.11
         88 |          6        0.06       95.17
         89 |          3        0.03       95.20
         90 |          4        0.04       95.24
         91 |          3        0.03       95.27
         92 |          4        0.04       95.31
         93 |          1        0.01       95.32
         94 |          1        0.01       95.33
         99 |        467        4.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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