The median sales price of a condominium on Kauai last month remained flat, compared to a year go, despite a 17 percent increase in the number of sales, while sales of single-family homes dropped by 10 percent, according to Kauai Board of Realtors data compiled by the Hawaii Information Service. In all, condo sales on Kauai rose to 42 units sold, a 16.7 percent increase from the 36 that were sold in June 2014.