Frequencies for first 10,000 rows of drug6cl3 variable in nhamcsed2003 dataset :

        drug class #3 for medication #6 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                        anticonvulsants |          3        0.03        0.03
                           antipyretics |         13        0.13        0.16
                          antimalarials |          1        0.01        0.17
                         antihistamines |         19        0.19        0.36
                          cold remedies |          3        0.03        0.39
                                      . |      9,961       99.61      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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