Frequencies for first 10,000 rows of age variable in nhamcsed2002 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    Under one year |        340        3.40        3.40
                 1 |        250        2.50        5.90
                 2 |        168        1.68        7.58
                 3 |        136        1.36        8.94
                 4 |        120        1.20       10.14
                 5 |        106        1.06       11.20
                 6 |        100        1.00       12.20
                 7 |         89        0.89       13.09
                 8 |         81        0.81       13.90
                 9 |         84        0.84       14.74
                10 |         90        0.90       15.64
                11 |        107        1.07       16.71
                12 |         99        0.99       17.70
                13 |         86        0.86       18.56
                14 |        102        1.02       19.58
                15 |         83        0.83       20.41
                16 |        102        1.02       21.43
                17 |        126        1.26       22.69
                18 |        136        1.36       24.05
                19 |        162        1.62       25.67
                20 |        162        1.62       27.29
                21 |        174        1.74       29.03
                22 |        185        1.85       30.88
                23 |        160        1.60       32.48
                24 |        168        1.68       34.16
                25 |        175        1.75       35.91
                26 |        160        1.60       37.51
                27 |        164        1.64       39.15
                28 |        145        1.45       40.60
                29 |        165        1.65       42.25
                30 |        170        1.70       43.95
                31 |        161        1.61       45.56
                32 |        203        2.03       47.59
                33 |        159        1.59       49.18
                34 |        180        1.80       50.98
                35 |        139        1.39       52.37
                36 |        171        1.71       54.08
                37 |        145        1.45       55.53
                38 |        174        1.74       57.27
                39 |        156        1.56       58.83
                40 |        149        1.49       60.32
                41 |        154        1.54       61.86
                42 |        161        1.61       63.47
                43 |        184        1.84       65.31
                44 |        150        1.50       66.81
                45 |        144        1.44       68.25
                46 |        142        1.42       69.67
                47 |        114        1.14       70.81
                48 |        134        1.34       72.15
                49 |        124        1.24       73.39
                50 |        109        1.09       74.48
                51 |        101        1.01       75.49
                52 |        116        1.16       76.65
                53 |         97        0.97       77.62
                54 |        101        1.01       78.63
                55 |        105        1.05       79.68
                56 |         95        0.95       80.63
                57 |         91        0.91       81.54
                58 |         84        0.84       82.38
                59 |         78        0.78       83.16
                60 |         71        0.71       83.87
                61 |         60        0.60       84.47
                62 |         66        0.66       85.13
                63 |         57        0.57       85.70
                64 |         61        0.61       86.31
                65 |         66        0.66       86.97
                66 |         64        0.64       87.61
                67 |         65        0.65       88.26
                68 |         58        0.58       88.84
                69 |         52        0.52       89.36
                70 |         55        0.55       89.91
                71 |         52        0.52       90.43
                72 |         48        0.48       90.91
                73 |         64        0.64       91.55
                74 |         50        0.50       92.05
                75 |         65        0.65       92.70
                76 |         54        0.54       93.24
                77 |         56        0.56       93.80
                78 |         50        0.50       94.30
                79 |         58        0.58       94.88
                80 |         54        0.54       95.42
                81 |         60        0.60       96.02
                82 |         46        0.46       96.48
                83 |         43        0.43       96.91
                84 |         54        0.54       97.45
                85 |         52        0.52       97.97
                86 |         30        0.30       98.27
                87 |         24        0.24       98.51
                88 |         29        0.29       98.80
                89 |         20        0.20       99.00
                90 |         23        0.23       99.23
                91 |         22        0.22       99.45
                92 |         14        0.14       99.59
                93 |          7        0.07       99.66
                94 |          7        0.07       99.73
                95 |          5        0.05       99.78
                96 |          8        0.08       99.86
                97 |          5        0.05       99.91
                99 |          4        0.04       99.95
100 years and over |          5        0.05      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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