Frequencies for first 10,000 rows of rx9v1c2 variable in nhamcsed2015 dataset :

   For RX9, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,940       99.40       99.40
        001 |          3        0.03       99.43
        040 |          9        0.09       99.52
        057 |         14        0.14       99.66
        081 |          5        0.05       99.71
        097 |          3        0.03       99.74
        105 |          1        0.01       99.75
        115 |          5        0.05       99.80
        122 |         17        0.17       99.97
        218 |          2        0.02       99.99
        242 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017