Frequencies for first 10,000 rows of age variable in nhamcsed2011 dataset :

   Patient age in |
            years |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under one year |        213        2.13        2.13
                1 |        230        2.30        4.43
                2 |        150        1.50        5.93
                3 |        160        1.60        7.53
                4 |        111        1.11        8.64
                5 |        114        1.14        9.78
                6 |         92        0.92       10.70
                7 |         74        0.74       11.44
                8 |         77        0.77       12.21
                9 |         69        0.69       12.90
               10 |         71        0.71       13.61
               11 |         79        0.79       14.40
               12 |         66        0.66       15.06
               13 |         85        0.85       15.91
               14 |         86        0.86       16.77
               15 |        106        1.06       17.83
               16 |        120        1.20       19.03
               17 |        121        1.21       20.24
               18 |        148        1.48       21.72
               19 |        172        1.72       23.44
               20 |        174        1.74       25.18
               21 |        200        2.00       27.18
               22 |        200        2.00       29.18
               23 |        173        1.73       30.91
               24 |        170        1.70       32.61
               25 |        178        1.78       34.39
               26 |        160        1.60       35.99
               27 |        164        1.64       37.63
               28 |        182        1.82       39.45
               29 |        148        1.48       40.93
               30 |        176        1.76       42.69
               31 |        148        1.48       44.17
               32 |        169        1.69       45.86
               33 |        159        1.59       47.45
               34 |        128        1.28       48.73
               35 |        129        1.29       50.02
               36 |        119        1.19       51.21
               37 |        119        1.19       52.40
               38 |        131        1.31       53.71
               39 |        117        1.17       54.88
               40 |        134        1.34       56.22
               41 |        126        1.26       57.48
               42 |        134        1.34       58.82
               43 |        128        1.28       60.10
               44 |        137        1.37       61.47
               45 |        132        1.32       62.79
               46 |        162        1.62       64.41
               47 |        133        1.33       65.74
               48 |        149        1.49       67.23
               49 |        133        1.33       68.56
               50 |        127        1.27       69.83
               51 |        121        1.21       71.04
               52 |        118        1.18       72.22
               53 |        117        1.17       73.39
               54 |        103        1.03       74.42
               55 |         94        0.94       75.36
               56 |        118        1.18       76.54
               57 |        120        1.20       77.74
               58 |         90        0.90       78.64
               59 |         99        0.99       79.63
               60 |        107        1.07       80.70
               61 |         80        0.80       81.50
               62 |         69        0.69       82.19
               63 |         77        0.77       82.96
               64 |         72        0.72       83.68
               65 |         79        0.79       84.47
               66 |         66        0.66       85.13
               67 |         88        0.88       86.01
               68 |         84        0.84       86.85
               69 |         54        0.54       87.39
               70 |         63        0.63       88.02
               71 |         63        0.63       88.65
               72 |         59        0.59       89.24
               73 |         55        0.55       89.79
               74 |         59        0.59       90.38
               75 |         65        0.65       91.03
               76 |         54        0.54       91.57
               77 |         54        0.54       92.11
               78 |         50        0.50       92.61
               79 |         50        0.50       93.11
               80 |         69        0.69       93.80
               81 |         61        0.61       94.41
               82 |         56        0.56       94.97
               83 |         58        0.58       95.55
               84 |         68        0.68       96.23
               85 |         52        0.52       96.75
               86 |         41        0.41       97.16
               87 |         46        0.46       97.62
               88 |         39        0.39       98.01
               89 |         45        0.45       98.46
               90 |         29        0.29       98.75
               91 |         34        0.34       99.09
               92 |         20        0.20       99.29
93 years and over |         71        0.71      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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