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

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         44        0.44        0.44
          1 |         48        0.48        0.92
          2 |         64        0.64        1.56
          3 |         69        0.69        2.25
          4 |         76        0.76        3.01
          5 |         54        0.54        3.55
          6 |         47        0.47        4.02
          7 |         63        0.63        4.65
          8 |         54        0.54        5.19
          9 |         45        0.45        5.64
         10 |         51        0.51        6.15
         11 |         55        0.55        6.70
         12 |         73        0.73        7.43
         13 |         64        0.64        8.07
         14 |        104        1.04        9.11
         15 |        155        1.55       10.66
         16 |        336        3.36       14.02
         17 |        345        3.45       17.47
         18 |        372        3.72       21.19
         19 |        372        3.72       24.91
         20 |        316        3.16       28.07
         21 |        347        3.47       31.54
         22 |        307        3.07       34.61
         23 |        300        3.00       37.61
         24 |        302        3.02       40.63
         25 |        303        3.03       43.66
         26 |        285        2.85       46.51
         27 |        217        2.17       48.68
         28 |        235        2.35       51.03
         29 |        262        2.62       53.65
         30 |        202        2.02       55.67
         31 |        201        2.01       57.68
         32 |        162        1.62       59.30
         33 |        187        1.87       61.17
         34 |        140        1.40       62.57
         35 |        155        1.55       64.12
         36 |        151        1.51       65.63
         37 |        141        1.41       67.04
         38 |        130        1.30       68.34
         39 |        165        1.65       69.99
         40 |        128        1.28       71.27
         41 |        116        1.16       72.43
         42 |         88        0.88       73.31
         43 |        110        1.10       74.41
         44 |        107        1.07       75.48
         45 |         87        0.87       76.35
         46 |         70        0.70       77.05
         47 |         81        0.81       77.86
         48 |         93        0.93       78.79
         49 |         74        0.74       79.53
         50 |         71        0.71       80.24
         51 |         73        0.73       80.97
         52 |         78        0.78       81.75
         53 |         57        0.57       82.32
         54 |         60        0.60       82.92
         55 |         70        0.70       83.62
         56 |         47        0.47       84.09
         57 |         65        0.65       84.74
         58 |         48        0.48       85.22
         59 |         48        0.48       85.70
         60 |         59        0.59       86.29
         61 |         56        0.56       86.85
         62 |         54        0.54       87.39
         63 |         58        0.58       87.97
         64 |         53        0.53       88.50
         65 |         50        0.50       89.00
         66 |         53        0.53       89.53
         67 |         39        0.39       89.92
         68 |         49        0.49       90.41
         69 |         55        0.55       90.96
         70 |         52        0.52       91.48
         71 |         31        0.31       91.79
         72 |         45        0.45       92.24
         73 |         42        0.42       92.66
         74 |         38        0.38       93.04
         75 |         28        0.28       93.32
         76 |         31        0.31       93.63
         77 |         43        0.43       94.06
         78 |         24        0.24       94.30
         79 |         42        0.42       94.72
         80 |         34        0.34       95.06
         81 |         17        0.17       95.23
         82 |         19        0.19       95.42
         83 |         17        0.17       95.59
         84 |         19        0.19       95.78
         85 |          9        0.09       95.87
         86 |          7        0.07       95.94
         87 |          7        0.07       96.01
         88 |          7        0.07       96.08
         89 |          6        0.06       96.14
         90 |          5        0.05       96.19
         91 |          3        0.03       96.22
         93 |          3        0.03       96.25
         95 |          1        0.01       96.26
         97 |          1        0.01       96.27
         99 |        373        3.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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