Frequencies for first 10,000 rows of drug8cl2 variable in nhamcsed2004 dataset :

        drug class #2 for medication #8 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                        medicinal gases |          1        0.01        0.01
                antihypertensive agents |          1        0.01        0.02
                              diuretics |          4        0.04        0.06
                          beta blockers |          4        0.04        0.10
           alpha agonist/alpha blockers |          3        0.03        0.13
                              laxatives |          1        0.01        0.14
                      vitamins/minerals |          1        0.01        0.15
repl/regs of electrolytes/water balance |          1        0.01        0.16
                   dermatologics, misc. |          1        0.01        0.17
          skeletal muscle hyperactivity |          2        0.02        0.19
ocular anti-infective/anti-inflammatory |          1        0.01        0.20
                         antiarthritics |         10        0.10        0.30
                                  nsaid |          6        0.06        0.36
                           antipyretics |         13        0.13        0.49
                         antiprotozoals |          1        0.01        0.50
   antitussives/expectorants/mucolytics |          3        0.03        0.53
                         antihistamines |          1        0.01        0.54
                    pharmaceutical aids |          7        0.07        0.61
                                      . |      9,939       99.39      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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