CREATE TABLE table_20959 ("Country" TEXT, "Skip" TEXT, "W" FLOAT, "L" FLOAT, "PF" FLOAT, "PA" FLOAT, "Ends Won" FLOAT, "Ends Lost" FLOAT, "Blank Ends F/A" TEXT, "Stolen Ends For" FLOAT, "Stolen Ends Against" FLOAT, "Shot %" FLOAT)

Who was the skip when the stolen ends against was 13?
SELECT "Skip" FROM table_20959 WHERE "Stolen Ends Against" = '13'
SELECT "Skip" FROM "table_20959" WHERE "Stolen Ends Against" = '13'