Frequencies for first 10,000 rows of rx8v1c1 variable in namcs2011 dataset :

   For RX8, |
 level 1 of |
MULTUM drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,022       90.22       90.22
        001 |         27        0.27       90.49
        020 |          7        0.07       90.56
        028 |          2        0.02       90.58
        040 |        142        1.42       92.00
        057 |        191        1.91       93.91
        081 |         22        0.22       94.13
        087 |         82        0.82       94.95
        097 |         48        0.48       95.43
        105 |         12        0.12       95.55
        113 |         10        0.10       95.65
        115 |        104        1.04       96.69
        122 |         71        0.71       97.40
        133 |         35        0.35       97.75
        218 |         36        0.36       98.11
        242 |         37        0.37       98.48
        254 |         34        0.34       98.82
        358 |        117        1.17       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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