Hello,   I want to know the top 3 most common reason for visit for each birth group for a dataset with 2 columns where: Column 1 has birth group (so like child, senior, adult, etc) [BD_CLASS]  Column 2 has that’s their reason for visiting the ER. [main_problem]   I tried using  PROC SQL; SELECT BD_CLASS, count(unique(main_problem)) as u_PROB FROM work.test12 group by BD_Class; quit; but that only told me the number of unique problems in each birth group; not the most popular ones.    Any help would be much appreciated     ... View more