Frequencies for first 10,000 rows of rx6v1c1 variable in namcs2009 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,317       83.17       83.17
        001 |         44        0.44       83.61
        020 |          3        0.03       83.64
        028 |          1        0.01       83.65
        040 |        292        2.92       86.57
        057 |        310        3.10       89.67
        081 |         34        0.34       90.01
        087 |        137        1.37       91.38
        097 |         69        0.69       92.07
        105 |         36        0.36       92.43
        113 |         27        0.27       92.70
        115 |        132        1.32       94.02
        122 |        134        1.34       95.36
        133 |         80        0.80       96.16
        218 |         37        0.37       96.53
        242 |         66        0.66       97.19
        254 |         31        0.31       97.50
        358 |        248        2.48       99.98
        365 |          1        0.01       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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