Frequencies for first 10,000 rows of age variable in namcs2000 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    Under one year |        638        6.38        6.38
                 1 |        356        3.56        9.94
                 2 |        228        2.28       12.22
                 3 |        174        1.74       13.96
                 4 |        168        1.68       15.64
                 5 |        150        1.50       17.14
                 6 |        141        1.41       18.55
                 7 |        115        1.15       19.70
                 8 |        121        1.21       20.91
                 9 |        124        1.24       22.15
                10 |         94        0.94       23.09
                11 |        119        1.19       24.28
                12 |         94        0.94       25.22
                13 |         93        0.93       26.15
                14 |         98        0.98       27.13
                15 |         84        0.84       27.97
                16 |         86        0.86       28.83
                17 |         91        0.91       29.74
                18 |         81        0.81       30.55
                19 |         69        0.69       31.24
                20 |         52        0.52       31.76
                21 |         61        0.61       32.37
                22 |         79        0.79       33.16
                23 |         59        0.59       33.75
                24 |         71        0.71       34.46
                25 |         64        0.64       35.10
                26 |         80        0.80       35.90
                27 |         85        0.85       36.75
                28 |         93        0.93       37.68
                29 |         88        0.88       38.56
                30 |         73        0.73       39.29
                31 |        109        1.09       40.38
                32 |         90        0.90       41.28
                33 |         88        0.88       42.16
                34 |         90        0.90       43.06
                35 |         98        0.98       44.04
                36 |        102        1.02       45.06
                37 |        101        1.01       46.07
                38 |        124        1.24       47.31
                39 |        114        1.14       48.45
                40 |        121        1.21       49.66
                41 |        151        1.51       51.17
                42 |        119        1.19       52.36
                43 |        142        1.42       53.78
                44 |        134        1.34       55.12
                45 |        115        1.15       56.27
                46 |        123        1.23       57.50
                47 |        109        1.09       58.59
                48 |        132        1.32       59.91
                49 |        131        1.31       61.22
                50 |        120        1.20       62.42
                51 |        144        1.44       63.86
                52 |        162        1.62       65.48
                53 |        166        1.66       67.14
                54 |        112        1.12       68.26
                55 |        121        1.21       69.47
                56 |        133        1.33       70.80
                57 |        122        1.22       72.02
                58 |        112        1.12       73.14
                59 |        112        1.12       74.26
                60 |        109        1.09       75.35
                61 |        102        1.02       76.37
                62 |         99        0.99       77.36
                63 |        108        1.08       78.44
                64 |         93        0.93       79.37
                65 |        107        1.07       80.44
                66 |        102        1.02       81.46
                67 |        114        1.14       82.60
                68 |        106        1.06       83.66
                69 |        106        1.06       84.72
                70 |         93        0.93       85.65
                71 |        101        1.01       86.66
                72 |        109        1.09       87.75
                73 |        106        1.06       88.81
                74 |         93        0.93       89.74
                75 |         96        0.96       90.70
                76 |         99        0.99       91.69
                77 |         88        0.88       92.57
                78 |         87        0.87       93.44
                79 |        104        1.04       94.48
                80 |         71        0.71       95.19
                81 |         74        0.74       95.93
                82 |         83        0.83       96.76
                83 |         68        0.68       97.44
                84 |         38        0.38       97.82
                85 |         47        0.47       98.29
                86 |         33        0.33       98.62
                87 |         30        0.30       98.92
                88 |         29        0.29       99.21
                89 |         14        0.14       99.35
                90 |         18        0.18       99.53
                91 |         13        0.13       99.66
                92 |          8        0.08       99.74
                93 |          7        0.07       99.81
                94 |          5        0.05       99.86
                95 |          6        0.06       99.92
                96 |          4        0.04       99.96
                97 |          1        0.01       99.97
                98 |          1        0.01       99.98
                99 |          1        0.01       99.99
100 years and over |          1        0.01      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

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