Helped by rising home prices, Realtors saw their incomes jump for the third straight year in 2013, but an even bigger jump in expenses ate into their take-home pay, according to an annual member survey from the National Association of Realtors released today. Realtors’ median gross income was $47,700 in 2013, up 9.7 percent from $43,500 in 2012, according to the NAR 2014 Member Profile, which includes the results of a 91-question survey answered by 6,462 Realtors. The median number of transactions for Realtors last year stayed flat at 12, but home prices rose 11.5 percent, according to NAR.