CREATE TABLE table_76186 ("Club" TEXT, "Home city" TEXT, "Stadium" TEXT, "Founded" FLOAT, "Joined PRSL" FLOAT)

when is the latest to join prsl when founded in 2007 and the stadium is roberto clemente stadium 1?
SELECT MAX("Joined PRSL") FROM table_76186 WHERE "Founded" = '2007' AND "Stadium" = 'roberto clemente stadium 1'
SELECT MAX("Joined PRSL") FROM "table_76186" WHERE "Founded" = '2007' AND "Stadium" = 'roberto clemente stadium 1'