Frequencies for first 10,000 rows of rx3v1c2 variable in namcs2009 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,589       95.89       95.89
        001 |         34        0.34       96.23
        020 |          1        0.01       96.24
        040 |         73        0.73       96.97
        057 |         69        0.69       97.66
        081 |        110        1.10       98.76
        097 |         27        0.27       99.03
        105 |         17        0.17       99.20
        115 |         11        0.11       99.31
        122 |         29        0.29       99.60
        133 |         12        0.12       99.72
        218 |          1        0.01       99.73
        242 |          3        0.03       99.76
        254 |          1        0.01       99.77
        358 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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