Frequencies for first 10,000 rows of rx1v1c2 variable in namcs2008 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,317       93.17       93.17
        001 |        109        1.09       94.26
        040 |         96        0.96       95.22
        057 |        137        1.37       96.59
        081 |         90        0.90       97.49
        097 |         80        0.80       98.29
        105 |         26        0.26       98.55
        115 |          4        0.04       98.59
        122 |         72        0.72       99.31
        133 |         28        0.28       99.59
        218 |          3        0.03       99.62
        242 |          7        0.07       99.69
        254 |          2        0.02       99.71
        331 |          1        0.01       99.72
        358 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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