Frequencies for first 10,000 rows of rx1v1c2 variable in namcs2006 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,387       93.87       93.87
        001 |        114        1.14       95.01
        040 |         31        0.31       95.32
        057 |        135        1.35       96.67
        081 |         85        0.85       97.52
        087 |          1        0.01       97.53
        097 |         47        0.47       98.00
        105 |         73        0.73       98.73
        115 |         12        0.12       98.85
        122 |         49        0.49       99.34
        133 |         37        0.37       99.71
        218 |          1        0.01       99.72
        242 |          2        0.02       99.74
        358 |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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