Frequencies for first 10,000 rows of age variable in nhamcsed2006 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    under one year |        411        4.11        4.11
                 1 |        338        3.38        7.49
                 2 |        252        2.52       10.01
                 3 |        194        1.94       11.95
                 4 |        143        1.43       13.38
                 5 |        132        1.32       14.70
                 6 |        121        1.21       15.91
                 7 |         95        0.95       16.86
                 8 |         95        0.95       17.81
                 9 |         89        0.89       18.70
                10 |         90        0.90       19.60
                11 |         83        0.83       20.43
                12 |         92        0.92       21.35
                13 |         94        0.94       22.29
                14 |         91        0.91       23.20
                15 |        129        1.29       24.49
                16 |        143        1.43       25.92
                17 |        124        1.24       27.16
                18 |        155        1.55       28.71
                19 |        155        1.55       30.26
                20 |        170        1.70       31.96
                21 |        166        1.66       33.62
                22 |        178        1.78       35.40
                23 |        195        1.95       37.35
                24 |        165        1.65       39.00
                25 |        169        1.69       40.69
                26 |        170        1.70       42.39
                27 |        160        1.60       43.99
                28 |        132        1.32       45.31
                29 |        126        1.26       46.57
                30 |        118        1.18       47.75
                31 |        120        1.20       48.95
                32 |        128        1.28       50.23
                33 |        142        1.42       51.65
                34 |        113        1.13       52.78
                35 |        120        1.20       53.98
                36 |        133        1.33       55.31
                37 |        117        1.17       56.48
                38 |        109        1.09       57.57
                39 |        128        1.28       58.85
                40 |        119        1.19       60.04
                41 |        136        1.36       61.40
                42 |        133        1.33       62.73
                43 |        148        1.48       64.21
                44 |        150        1.50       65.71
                45 |        143        1.43       67.14
                46 |        144        1.44       68.58
                47 |        109        1.09       69.67
                48 |        113        1.13       70.80
                49 |        156        1.56       72.36
                50 |        121        1.21       73.57
                51 |         98        0.98       74.55
                52 |         94        0.94       75.49
                53 |        121        1.21       76.70
                54 |        107        1.07       77.77
                55 |         84        0.84       78.61
                56 |         75        0.75       79.36
                57 |        102        1.02       80.38
                58 |         83        0.83       81.21
                59 |         86        0.86       82.07
                60 |         80        0.80       82.87
                61 |         81        0.81       83.68
                62 |         60        0.60       84.28
                63 |         55        0.55       84.83
                64 |         63        0.63       85.46
                65 |         71        0.71       86.17
                66 |         64        0.64       86.81
                67 |         56        0.56       87.37
                68 |         49        0.49       87.86
                69 |         54        0.54       88.40
                70 |         52        0.52       88.92
                71 |         75        0.75       89.67
                72 |         51        0.51       90.18
                73 |         60        0.60       90.78
                74 |         74        0.74       91.52
                75 |         47        0.47       91.99
                76 |         46        0.46       92.45
                77 |         60        0.60       93.05
                78 |         48        0.48       93.53
                79 |         63        0.63       94.16
                80 |         56        0.56       94.72
                81 |         53        0.53       95.25
                82 |         53        0.53       95.78
                83 |         51        0.51       96.29
                84 |         45        0.45       96.74
                85 |         50        0.50       97.24
                86 |         45        0.45       97.69
                87 |         36        0.36       98.05
                88 |         33        0.33       98.38
                89 |         25        0.25       98.63
                90 |         18        0.18       98.81
                91 |         29        0.29       99.10
                92 |         20        0.20       99.30
                93 |         14        0.14       99.44
                94 |         12        0.12       99.56
                95 |          9        0.09       99.65
                96 |          8        0.08       99.73
                97 |          5        0.05       99.78
                98 |          2        0.02       99.80
                99 |          3        0.03       99.83
100 years and over |         17        0.17      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016