Frequencies for first 10,000 rows of drug5cl3 variable in nhamcsed2003 dataset :

        drug class #3 for medication #5 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
repl/regs of electrolytes/water balance |          1        0.01        0.01
                        anticonvulsants |          5        0.05        0.06
                cycloplegics/mydriatics |          1        0.01        0.07
                                  nsaid |          1        0.01        0.08
                           antipyretics |         14        0.14        0.22
         antiasthmatics/bronchodilators |          1        0.01        0.23
                         antihistamines |         20        0.20        0.43
                          cold remedies |          2        0.02        0.45
                                      . |      9,955       99.55      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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