Frequencies for first 10,000 rows of age variable in nhamcsed2003 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    under one year |        294        2.94        2.94
                 1 |        240        2.40        5.34
                 2 |        196        1.96        7.30
                 3 |        155        1.55        8.85
                 4 |        131        1.31       10.16
                 5 |        108        1.08       11.24
                 6 |         82        0.82       12.06
                 7 |         83        0.83       12.89
                 8 |         74        0.74       13.63
                 9 |         84        0.84       14.47
                10 |         77        0.77       15.24
                11 |         89        0.89       16.13
                12 |         91        0.91       17.04
                13 |         90        0.90       17.94
                14 |         86        0.86       18.80
                15 |        118        1.18       19.98
                16 |        133        1.33       21.31
                17 |        123        1.23       22.54
                18 |        146        1.46       24.00
                19 |        147        1.47       25.47
                20 |        187        1.87       27.34
                21 |        195        1.95       29.29
                22 |        171        1.71       31.00
                23 |        169        1.69       32.69
                24 |        181        1.81       34.50
                25 |        153        1.53       36.03
                26 |        161        1.61       37.64
                27 |        157        1.57       39.21
                28 |        161        1.61       40.82
                29 |        160        1.60       42.42
                30 |        146        1.46       43.88
                31 |        143        1.43       45.31
                32 |        160        1.60       46.91
                33 |        159        1.59       48.50
                34 |        143        1.43       49.93
                35 |        150        1.50       51.43
                36 |        157        1.57       53.00
                37 |        132        1.32       54.32
                38 |        157        1.57       55.89
                39 |        154        1.54       57.43
                40 |        173        1.73       59.16
                41 |        164        1.64       60.80
                42 |        151        1.51       62.31
                43 |        155        1.55       63.86
                44 |        150        1.50       65.36
                45 |        148        1.48       66.84
                46 |        126        1.26       68.10
                47 |        117        1.17       69.27
                48 |        126        1.26       70.53
                49 |        144        1.44       71.97
                50 |        118        1.18       73.15
                51 |        119        1.19       74.34
                52 |         99        0.99       75.33
                53 |        124        1.24       76.57
                54 |         93        0.93       77.50
                55 |        102        1.02       78.52
                56 |         90        0.90       79.42
                57 |         68        0.68       80.10
                58 |         81        0.81       80.91
                59 |         94        0.94       81.85
                60 |         80        0.80       82.65
                61 |         73        0.73       83.38
                62 |         61        0.61       83.99
                63 |         63        0.63       84.62
                64 |         65        0.65       85.27
                65 |         70        0.70       85.97
                66 |         60        0.60       86.57
                67 |         67        0.67       87.24
                68 |         61        0.61       87.85
                69 |         57        0.57       88.42
                70 |         62        0.62       89.04
                71 |         72        0.72       89.76
                72 |         57        0.57       90.33
                73 |         78        0.78       91.11
                74 |         60        0.60       91.71
                75 |         57        0.57       92.28
                76 |         53        0.53       92.81
                77 |         79        0.79       93.60
                78 |         55        0.55       94.15
                79 |         58        0.58       94.73
                80 |         62        0.62       95.35
                81 |         45        0.45       95.80
                82 |         59        0.59       96.39
                83 |         44        0.44       96.83
                84 |         39        0.39       97.22
                85 |         34        0.34       97.56
                86 |         30        0.30       97.86
                87 |         34        0.34       98.20
                88 |         34        0.34       98.54
                89 |         28        0.28       98.82
                90 |         28        0.28       99.10
                91 |         16        0.16       99.26
                92 |         22        0.22       99.48
                93 |         11        0.11       99.59
                94 |         13        0.13       99.72
                95 |          9        0.09       99.81
                96 |          6        0.06       99.87
                97 |          5        0.05       99.92
                98 |          1        0.01       99.93
                99 |          1        0.01       99.94
100 years and over |          6        0.06      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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