Frequencies for first 10,000 rows of age variable in namcs2004 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    Under one year |        234        2.34        2.34
                 1 |        171        1.71        4.05
                 2 |         80        0.80        4.85
                 3 |         64        0.64        5.49
                 4 |         88        0.88        6.37
                 5 |         67        0.67        7.04
                 6 |         52        0.52        7.56
                 7 |         73        0.73        8.29
                 8 |         58        0.58        8.87
                 9 |         68        0.68        9.55
                10 |         49        0.49       10.04
                11 |         60        0.60       10.64
                12 |         61        0.61       11.25
                13 |         80        0.80       12.05
                14 |         76        0.76       12.81
                15 |         69        0.69       13.50
                16 |         62        0.62       14.12
                17 |         98        0.98       15.10
                18 |         64        0.64       15.74
                19 |         78        0.78       16.52
                20 |         61        0.61       17.13
                21 |         69        0.69       17.82
                22 |         81        0.81       18.63
                23 |         79        0.79       19.42
                24 |         77        0.77       20.19
                25 |         63        0.63       20.82
                26 |         78        0.78       21.60
                27 |         76        0.76       22.36
                28 |         98        0.98       23.34
                29 |         96        0.96       24.30
                30 |         93        0.93       25.23
                31 |         88        0.88       26.11
                32 |         96        0.96       27.07
                33 |        112        1.12       28.19
                34 |        103        1.03       29.22
                35 |         98        0.98       30.20
                36 |        112        1.12       31.32
                37 |        108        1.08       32.40
                38 |        125        1.25       33.65
                39 |        106        1.06       34.71
                40 |        132        1.32       36.03
                41 |        128        1.28       37.31
                42 |        131        1.31       38.62
                43 |        176        1.76       40.38
                44 |        131        1.31       41.69
                45 |        158        1.58       43.27
                46 |        126        1.26       44.53
                47 |        145        1.45       45.98
                48 |        159        1.59       47.57
                49 |        147        1.47       49.04
                50 |        164        1.64       50.68
                51 |        174        1.74       52.42
                52 |        147        1.47       53.89
                53 |        176        1.76       55.65
                54 |        178        1.78       57.43
                55 |        164        1.64       59.07
                56 |        166        1.66       60.73
                57 |        178        1.78       62.51
                58 |        146        1.46       63.97
                59 |        121        1.21       65.18
                60 |        141        1.41       66.59
                61 |        158        1.58       68.17
                62 |        141        1.41       69.58
                63 |        108        1.08       70.66
                64 |        126        1.26       71.92
                65 |        109        1.09       73.01
                66 |        135        1.35       74.36
                67 |        121        1.21       75.57
                68 |        139        1.39       76.96
                69 |        105        1.05       78.01
                70 |        115        1.15       79.16
                71 |        127        1.27       80.43
                72 |        137        1.37       81.80
                73 |        145        1.45       83.25
                74 |        149        1.49       84.74
                75 |        130        1.30       86.04
                76 |        149        1.49       87.53
                77 |        134        1.34       88.87
                78 |        140        1.40       90.27
                79 |        118        1.18       91.45
                80 |        122        1.22       92.67
                81 |        101        1.01       93.68
                82 |        106        1.06       94.74
                83 |         96        0.96       95.70
                84 |         89        0.89       96.59
                85 |         76        0.76       97.35
                86 |         51        0.51       97.86
                87 |         51        0.51       98.37
                88 |         31        0.31       98.68
                89 |         34        0.34       99.02
                90 |         35        0.35       99.37
                91 |         15        0.15       99.52
                92 |         13        0.13       99.65
                93 |         14        0.14       99.79
                94 |          3        0.03       99.82
                95 |          5        0.05       99.87
                96 |          2        0.02       99.89
                97 |          6        0.06       99.95
                98 |          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