Frequencies for first 10,000 rows of age variable in nhamcsed2008 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    under one year |        274        2.74        2.74
                 1 |        249        2.49        5.23
                 2 |        162        1.62        6.85
                 3 |        140        1.40        8.25
                 4 |        120        1.20        9.45
                 5 |        109        1.09       10.54
                 6 |         85        0.85       11.39
                 7 |         74        0.74       12.13
                 8 |         82        0.82       12.95
                 9 |         66        0.66       13.61
                10 |         80        0.80       14.41
                11 |         64        0.64       15.05
                12 |         64        0.64       15.69
                13 |         77        0.77       16.46
                14 |         84        0.84       17.30
                15 |        111        1.11       18.41
                16 |        121        1.21       19.62
                17 |        132        1.32       20.94
                18 |        153        1.53       22.47
                19 |        161        1.61       24.08
                20 |        187        1.87       25.95
                21 |        163        1.63       27.58
                22 |        151        1.51       29.09
                23 |        163        1.63       30.72
                24 |        165        1.65       32.37
                25 |        181        1.81       34.18
                26 |        156        1.56       35.74
                27 |        165        1.65       37.39
                28 |        143        1.43       38.82
                29 |        160        1.60       40.42
                30 |        156        1.56       41.98
                31 |        140        1.40       43.38
                32 |        121        1.21       44.59
                33 |        129        1.29       45.88
                34 |        126        1.26       47.14
                35 |        128        1.28       48.42
                36 |        160        1.60       50.02
                37 |        134        1.34       51.36
                38 |        129        1.29       52.65
                39 |        146        1.46       54.11
                40 |        126        1.26       55.37
                41 |        145        1.45       56.82
                42 |        106        1.06       57.88
                43 |        144        1.44       59.32
                44 |        152        1.52       60.84
                45 |        143        1.43       62.27
                46 |        136        1.36       63.63
                47 |        132        1.32       64.95
                48 |        153        1.53       66.48
                49 |        136        1.36       67.84
                50 |        150        1.50       69.34
                51 |        127        1.27       70.61
                52 |        127        1.27       71.88
                53 |        129        1.29       73.17
                54 |         99        0.99       74.16
                55 |         91        0.91       75.07
                56 |        108        1.08       76.15
                57 |         89        0.89       77.04
                58 |         87        0.87       77.91
                59 |         94        0.94       78.85
                60 |         96        0.96       79.81
                61 |         95        0.95       80.76
                62 |         63        0.63       81.39
                63 |         65        0.65       82.04
                64 |         76        0.76       82.80
                65 |         75        0.75       83.55
                66 |         74        0.74       84.29
                67 |         64        0.64       84.93
                68 |         69        0.69       85.62
                69 |         65        0.65       86.27
                70 |         60        0.60       86.87
                71 |         72        0.72       87.59
                72 |         73        0.73       88.32
                73 |         51        0.51       88.83
                74 |         65        0.65       89.48
                75 |         75        0.75       90.23
                76 |         68        0.68       90.91
                77 |         84        0.84       91.75
                78 |         76        0.76       92.51
                79 |         52        0.52       93.03
                80 |         61        0.61       93.64
                81 |         58        0.58       94.22
                82 |         60        0.60       94.82
                83 |         74        0.74       95.56
                84 |         58        0.58       96.14
                85 |         48        0.48       96.62
                86 |         53        0.53       97.15
                87 |         48        0.48       97.63
                88 |         46        0.46       98.09
                89 |         41        0.41       98.50
                90 |         33        0.33       98.83
                91 |         24        0.24       99.07
                92 |         19        0.19       99.26
                93 |         18        0.18       99.44
                94 |         15        0.15       99.59
                95 |         15        0.15       99.74
                96 |         10        0.10       99.84
                97 |          7        0.07       99.91
                98 |          4        0.04       99.95
                99 |          1        0.01       99.96
100 years and over |          4        0.04      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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