Frequencies for first 10,000 rows of rx1v1c2 variable in namcs2011 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,230       92.30       92.30
        001 |        125        1.25       93.55
        040 |        112        1.12       94.67
        057 |        134        1.34       96.01
        081 |        113        1.13       97.14
        087 |          1        0.01       97.15
        097 |         35        0.35       97.50
        105 |         34        0.34       97.84
        115 |         17        0.17       98.01
        122 |        119        1.19       99.20
        133 |         36        0.36       99.56
        218 |          6        0.06       99.62
        242 |          6        0.06       99.68
        254 |          5        0.05       99.73
        358 |         26        0.26       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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