Frequencies for first 10,000 rows of age variable in nhamcsed2012 dataset :

   Patient age in |
            years |      Freq.     Percent        Cum.
------------------+-----------------------------------
   Under one year |        185        1.85        1.85
                1 |        195        1.95        3.80
                2 |        158        1.58        5.38
                3 |        112        1.12        6.50
                4 |        124        1.24        7.74
                5 |        110        1.10        8.84
                6 |        102        1.02        9.86
                7 |         75        0.75       10.61
                8 |         84        0.84       11.45
                9 |         89        0.89       12.34
               10 |         72        0.72       13.06
               11 |         67        0.67       13.73
               12 |         86        0.86       14.59
               13 |        104        1.04       15.63
               14 |        102        1.02       16.65
               15 |        112        1.12       17.77
               16 |        122        1.22       18.99
               17 |        121        1.21       20.20
               18 |        164        1.64       21.84
               19 |        166        1.66       23.50
               20 |        207        2.07       25.57
               21 |        190        1.90       27.47
               22 |        207        2.07       29.54
               23 |        183        1.83       31.37
               24 |        181        1.81       33.18
               25 |        177        1.77       34.95
               26 |        170        1.70       36.65
               27 |        185        1.85       38.50
               28 |        160        1.60       40.10
               29 |        170        1.70       41.80
               30 |        186        1.86       43.66
               31 |        133        1.33       44.99
               32 |        154        1.54       46.53
               33 |        146        1.46       47.99
               34 |        124        1.24       49.23
               35 |        149        1.49       50.72
               36 |        120        1.20       51.92
               37 |        108        1.08       53.00
               38 |         98        0.98       53.98
               39 |        131        1.31       55.29
               40 |        106        1.06       56.35
               41 |        116        1.16       57.51
               42 |        121        1.21       58.72
               43 |        139        1.39       60.11
               44 |        140        1.40       61.51
               45 |        105        1.05       62.56
               46 |        124        1.24       63.80
               47 |        137        1.37       65.17
               48 |        130        1.30       66.47
               49 |        146        1.46       67.93
               50 |        140        1.40       69.33
               51 |        154        1.54       70.87
               52 |        121        1.21       72.08
               53 |        143        1.43       73.51
               54 |        127        1.27       74.78
               55 |        106        1.06       75.84
               56 |        119        1.19       77.03
               57 |        101        1.01       78.04
               58 |        105        1.05       79.09
               59 |         82        0.82       79.91
               60 |         98        0.98       80.89
               61 |         93        0.93       81.82
               62 |         71        0.71       82.53
               63 |         72        0.72       83.25
               64 |         72        0.72       83.97
               65 |         98        0.98       84.95
               66 |         71        0.71       85.66
               67 |         66        0.66       86.32
               68 |         51        0.51       86.83
               69 |         74        0.74       87.57
               70 |         66        0.66       88.23
               71 |         69        0.69       88.92
               72 |         51        0.51       89.43
               73 |         72        0.72       90.15
               74 |         47        0.47       90.62
               75 |         54        0.54       91.16
               76 |         49        0.49       91.65
               77 |         58        0.58       92.23
               78 |         54        0.54       92.77
               79 |         67        0.67       93.44
               80 |         52        0.52       93.96
               81 |         51        0.51       94.47
               82 |         47        0.47       94.94
               83 |         66        0.66       95.60
               84 |         63        0.63       96.23
               85 |         57        0.57       96.80
               86 |         46        0.46       97.26
               87 |         43        0.43       97.69
               88 |         39        0.39       98.08
               89 |         39        0.39       98.47
               90 |         27        0.27       98.74
               91 |         33        0.33       99.07
               92 |         21        0.21       99.28
93 years and over |         72        0.72      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016