Frequencies for first 10,000 rows of rx22v1c1 variable in nhamcsed2015 dataset 

  For RX22, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,978       99.78       99.78
        001 |          1        0.01       99.79
        040 |          2        0.02       99.81
        057 |          6        0.06       99.87
        081 |          1        0.01       99.88
        087 |          3        0.03       99.91
        097 |          3        0.03       99.94
        122 |          2        0.02       99.96
        153 |          1        0.01       99.97
        218 |          1        0.01       99.98
        242 |          1        0.01       99.99
        358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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