Frequencies for first 10,000 rows of pastvis variable in namcs2009 dataset :

   if yes, how |
many visits in |
       past 12 |
       months? |      Freq.     Percent        Cum.
---------------+-----------------------------------
not applicable |        952        9.52        9.52
             0 |        558        5.58       15.10
             1 |      1,570       15.70       30.80
             2 |      1,509       15.09       45.89
             3 |      1,255       12.55       58.44
             4 |        975        9.75       68.19
             5 |        758        7.58       75.77
             6 |        517        5.17       80.94
             7 |        427        4.27       85.21
             8 |        323        3.23       88.44
             9 |        207        2.07       90.51
            10 |        232        2.32       92.83
            11 |        139        1.39       94.22
            12 |        127        1.27       95.49
            13 |         97        0.97       96.46
            14 |         70        0.70       97.16
            15 |         55        0.55       97.71
            16 |         40        0.40       98.11
            17 |         16        0.16       98.27
            18 |         22        0.22       98.49
            19 |         15        0.15       98.64
            20 |         36        0.36       99.00
            21 |          9        0.09       99.09
            22 |         16        0.16       99.25
            23 |          9        0.09       99.34
            24 |          5        0.05       99.39
            25 |          3        0.03       99.42
            26 |          6        0.06       99.48
            27 |          3        0.03       99.51
            28 |          2        0.02       99.53
            29 |          5        0.05       99.58
            30 |          3        0.03       99.61
            31 |          2        0.02       99.63
            32 |          2        0.02       99.65
            33 |          4        0.04       99.69
            34 |          1        0.01       99.70
            36 |          5        0.05       99.75
            37 |          2        0.02       99.77
            38 |          2        0.02       99.79
            41 |          2        0.02       99.81
            46 |          1        0.01       99.82
            48 |          1        0.01       99.83
            50 |          2        0.02       99.85
            52 |          2        0.02       99.87
            54 |          2        0.02       99.89
            67 |          2        0.02       99.91
    99 or more |          9        0.09      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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