Frequencies for first 10,000 rows of rx7v1c1 variable in nhamcsed2010 dataset :

   For RX7, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,681       96.81       96.81
        001 |         31        0.31       97.12
        020 |          1        0.01       97.13
        040 |         35        0.35       97.48
        057 |        113        1.13       98.61
        081 |          5        0.05       98.66
        087 |         33        0.33       98.99
        097 |         14        0.14       99.13
        105 |          6        0.06       99.19
        113 |          1        0.01       99.20
        115 |         25        0.25       99.45
        122 |         17        0.17       99.62
        133 |          6        0.06       99.68
        242 |         11        0.11       99.79
        254 |          1        0.01       99.80
        331 |          2        0.02       99.82
        358 |         16        0.16       99.98
        365 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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