Frequencies for first 10,000 rows of rx1v1c1 variable in nhamcsed2008 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,163       21.63       21.63
        001 |      1,252       12.52       34.15
        020 |          4        0.04       34.19
        040 |        290        2.90       37.09
        057 |      3,936       39.36       76.45
        081 |         75        0.75       77.20
        087 |        312        3.12       80.32
        097 |        188        1.88       82.20
        105 |        199        1.99       84.19
        115 |        522        5.22       89.41
        122 |        438        4.38       93.79
        133 |        279        2.79       96.58
        218 |          4        0.04       96.62
        242 |         57        0.57       97.19
        254 |        166        1.66       98.85
        331 |         10        0.10       98.95
        358 |         62        0.62       99.57
        365 |         42        0.42       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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