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

        age |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         50        0.50        0.50
          1 |         74        0.74        1.24
          2 |         73        0.73        1.97
          3 |         75        0.75        2.72
          4 |         66        0.66        3.38
          5 |         65        0.65        4.03
          6 |         67        0.67        4.70
          7 |         63        0.63        5.33
          8 |         70        0.70        6.03
          9 |         79        0.79        6.82
         10 |         69        0.69        7.51
         11 |         69        0.69        8.20
         12 |         67        0.67        8.87
         13 |         78        0.78        9.65
         14 |        116        1.16       10.81
         15 |        130        1.30       12.11
         16 |        209        2.09       14.20
         17 |        255        2.55       16.75
         18 |        354        3.54       20.29
         19 |        369        3.69       23.98
         20 |        334        3.34       27.32
         21 |        298        2.98       30.30
         22 |        279        2.79       33.09
         23 |        256        2.56       35.65
         24 |        210        2.10       37.75
         25 |        214        2.14       39.89
         26 |        174        1.74       41.63
         27 |        173        1.73       43.36
         28 |        185        1.85       45.21
         29 |        168        1.68       46.89
         30 |        159        1.59       48.48
         31 |        161        1.61       50.09
         32 |        184        1.84       51.93
         33 |        169        1.69       53.62
         34 |        169        1.69       55.31
         35 |        155        1.55       56.86
         36 |        144        1.44       58.30
         37 |        138        1.38       59.68
         38 |        149        1.49       61.17
         39 |        145        1.45       62.62
         40 |        159        1.59       64.21
         41 |        153        1.53       65.74
         42 |        143        1.43       67.17
         43 |        140        1.40       68.57
         44 |        158        1.58       70.15
         45 |        131        1.31       71.46
         46 |        129        1.29       72.75
         47 |        113        1.13       73.88
         48 |        117        1.17       75.05
         49 |        114        1.14       76.19
         50 |        110        1.10       77.29
         51 |        106        1.06       78.35
         52 |         85        0.85       79.20
         53 |        109        1.09       80.29
         54 |         96        0.96       81.25
         55 |         70        0.70       81.95
         56 |         72        0.72       82.67
         57 |         69        0.69       83.36
         58 |         74        0.74       84.10
         59 |         59        0.59       84.69
         60 |         59        0.59       85.28
         61 |         67        0.67       85.95
         62 |         56        0.56       86.51
         63 |         57        0.57       87.08
         64 |         39        0.39       87.47
         65 |         40        0.40       87.87
         66 |         41        0.41       88.28
         67 |         34        0.34       88.62
         68 |         37        0.37       88.99
         69 |         48        0.48       89.47
         70 |         49        0.49       89.96
         71 |         46        0.46       90.42
         72 |         34        0.34       90.76
         73 |         52        0.52       91.28
         74 |         44        0.44       91.72
         75 |         37        0.37       92.09
         76 |         47        0.47       92.56
         77 |         30        0.30       92.86
         78 |         35        0.35       93.21
         79 |         43        0.43       93.64
         80 |         38        0.38       94.02
         81 |         40        0.40       94.42
         82 |         25        0.25       94.67
         83 |         32        0.32       94.99
         84 |         21        0.21       95.20
         85 |         28        0.28       95.48
         86 |         16        0.16       95.64
         87 |         14        0.14       95.78
         88 |         12        0.12       95.90
         89 |          6        0.06       95.96
         90 |         15        0.15       96.11
         91 |          8        0.08       96.19
         92 |          4        0.04       96.23
         93 |          2        0.02       96.25
         94 |          2        0.02       96.27
         95 |          1        0.01       96.28
         97 |          3        0.03       96.31
         99 |        369        3.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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