Frequencies for first 10,000 rows of age variable in namcs2007 dataset :

    patient age in |
             years |      Freq.     Percent        Cum.
-------------------+-----------------------------------
    under one year |        478        4.78        4.78
                 1 |        301        3.01        7.79
                 2 |        182        1.82        9.61
                 3 |        192        1.92       11.53
                 4 |        167        1.67       13.20
                 5 |        144        1.44       14.64
                 6 |        128        1.28       15.92
                 7 |        128        1.28       17.20
                 8 |        127        1.27       18.47
                 9 |        108        1.08       19.55
                10 |        112        1.12       20.67
                11 |        114        1.14       21.81
                12 |         96        0.96       22.77
                13 |        115        1.15       23.92
                14 |        122        1.22       25.14
                15 |        106        1.06       26.20
                16 |        140        1.40       27.60
                17 |        105        1.05       28.65
                18 |        102        1.02       29.67
                19 |         78        0.78       30.45
                20 |         74        0.74       31.19
                21 |         75        0.75       31.94
                22 |         69        0.69       32.63
                23 |         71        0.71       33.34
                24 |         69        0.69       34.03
                25 |         65        0.65       34.68
                26 |         86        0.86       35.54
                27 |         82        0.82       36.36
                28 |         73        0.73       37.09
                29 |         68        0.68       37.77
                30 |         91        0.91       38.68
                31 |         63        0.63       39.31
                32 |         71        0.71       40.02
                33 |         81        0.81       40.83
                34 |         92        0.92       41.75
                35 |        102        1.02       42.77
                36 |        101        1.01       43.78
                37 |        124        1.24       45.02
                38 |        113        1.13       46.15
                39 |         79        0.79       46.94
                40 |        110        1.10       48.04
                41 |         94        0.94       48.98
                42 |        119        1.19       50.17
                43 |        129        1.29       51.46
                44 |        130        1.30       52.76
                45 |        114        1.14       53.90
                46 |        137        1.37       55.27
                47 |        123        1.23       56.50
                48 |        139        1.39       57.89
                49 |        146        1.46       59.35
                50 |        140        1.40       60.75
                51 |        127        1.27       62.02
                52 |        135        1.35       63.37
                53 |        127        1.27       64.64
                54 |        150        1.50       66.14
                55 |        144        1.44       67.58
                56 |        136        1.36       68.94
                57 |        132        1.32       70.26
                58 |        138        1.38       71.64
                59 |        132        1.32       72.96
                60 |        124        1.24       74.20
                61 |        102        1.02       75.22
                62 |        114        1.14       76.36
                63 |        116        1.16       77.52
                64 |        115        1.15       78.67
                65 |        112        1.12       79.79
                66 |        121        1.21       81.00
                67 |        105        1.05       82.05
                68 |        107        1.07       83.12
                69 |        100        1.00       84.12
                70 |        104        1.04       85.16
                71 |         98        0.98       86.14
                72 |        100        1.00       87.14
                73 |        101        1.01       88.15
                74 |         92        0.92       89.07
                75 |         92        0.92       89.99
                76 |         83        0.83       90.82
                77 |         88        0.88       91.70
                78 |         73        0.73       92.43
                79 |         95        0.95       93.38
                80 |        103        1.03       94.41
                81 |         71        0.71       95.12
                82 |         72        0.72       95.84
                83 |         62        0.62       96.46
                84 |         48        0.48       96.94
                85 |         48        0.48       97.42
                86 |         56        0.56       97.98
                87 |         46        0.46       98.44
                88 |         40        0.40       98.84
                89 |         29        0.29       99.13
                90 |         19        0.19       99.32
                91 |         21        0.21       99.53
                92 |         17        0.17       99.70
                93 |          8        0.08       99.78
                94 |          4        0.04       99.82
                95 |          6        0.06       99.88
                96 |          4        0.04       99.92
                97 |          1        0.01       99.93
                98 |          3        0.03       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