Frequencies for first 10,000 rows of age variable in nhamcsed2007 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    under one year |        241        2.41        2.41
                 1 |        219        2.19        4.60
                 2 |        154        1.54        6.14
                 3 |        122        1.22        7.36
                 4 |         96        0.96        8.32
                 5 |        102        1.02        9.34
                 6 |         83        0.83       10.17
                 7 |         73        0.73       10.90
                 8 |         72        0.72       11.62
                 9 |         58        0.58       12.20
                10 |         65        0.65       12.85
                11 |         74        0.74       13.59
                12 |         55        0.55       14.14
                13 |         80        0.80       14.94
                14 |         87        0.87       15.81
                15 |         89        0.89       16.70
                16 |        113        1.13       17.83
                17 |        141        1.41       19.24
                18 |        179        1.79       21.03
                19 |        179        1.79       22.82
                20 |        175        1.75       24.57
                21 |        201        2.01       26.58
                22 |        180        1.80       28.38
                23 |        173        1.73       30.11
                24 |        188        1.88       31.99
                25 |        211        2.11       34.10
                26 |        188        1.88       35.98
                27 |        163        1.63       37.61
                28 |        170        1.70       39.31
                29 |        171        1.71       41.02
                30 |        161        1.61       42.63
                31 |        157        1.57       44.20
                32 |        153        1.53       45.73
                33 |        136        1.36       47.09
                34 |        141        1.41       48.50
                35 |        128        1.28       49.78
                36 |        154        1.54       51.32
                37 |        157        1.57       52.89
                38 |        140        1.40       54.29
                39 |        128        1.28       55.57
                40 |        146        1.46       57.03
                41 |        129        1.29       58.32
                42 |        154        1.54       59.86
                43 |        145        1.45       61.31
                44 |        135        1.35       62.66
                45 |        161        1.61       64.27
                46 |        172        1.72       65.99
                47 |        132        1.32       67.31
                48 |        113        1.13       68.44
                49 |        124        1.24       69.68
                50 |        138        1.38       71.06
                51 |        147        1.47       72.53
                52 |        154        1.54       74.07
                53 |         99        0.99       75.06
                54 |        132        1.32       76.38
                55 |        107        1.07       77.45
                56 |         94        0.94       78.39
                57 |         90        0.90       79.29
                58 |         98        0.98       80.27
                59 |         96        0.96       81.23
                60 |         95        0.95       82.18
                61 |         72        0.72       82.90
                62 |         62        0.62       83.52
                63 |         81        0.81       84.33
                64 |         72        0.72       85.05
                65 |         64        0.64       85.69
                66 |         67        0.67       86.36
                67 |         76        0.76       87.12
                68 |         45        0.45       87.57
                69 |         62        0.62       88.19
                70 |         52        0.52       88.71
                71 |         59        0.59       89.30
                72 |         51        0.51       89.81
                73 |         57        0.57       90.38
                74 |         50        0.50       90.88
                75 |         49        0.49       91.37
                76 |         63        0.63       92.00
                77 |         69        0.69       92.69
                78 |         58        0.58       93.27
                79 |         52        0.52       93.79
                80 |         58        0.58       94.37
                81 |         63        0.63       95.00
                82 |         56        0.56       95.56
                83 |         51        0.51       96.07
                84 |         68        0.68       96.75
                85 |         48        0.48       97.23
                86 |         34        0.34       97.57
                87 |         39        0.39       97.96
                88 |         30        0.30       98.26
                89 |         39        0.39       98.65
                90 |         26        0.26       98.91
                91 |         18        0.18       99.09
                92 |         15        0.15       99.24
                93 |         18        0.18       99.42
                94 |         11        0.11       99.53
                95 |         15        0.15       99.68
                96 |          6        0.06       99.74
                97 |          6        0.06       99.80
                98 |          6        0.06       99.86
                99 |          3        0.03       99.89
100 years and over |         11        0.11      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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