CREATE TABLE table_12192 ("Rank 2014" FLOAT, "Rank 2013" TEXT, "2009\\u201310" TEXT, "2010\\u201311" TEXT, "2011\\u201312" TEXT, "2012\\u201313" TEXT, "2013\\u201314" TEXT, "Coeff." TEXT, "Teams" TEXT, "CL places" FLOAT, "EL places" FLOAT, "Total" FLOAT)

Which EL places have a 2010 11 of 15.666?
SELECT MAX("EL places") FROM table_12192 WHERE "2010\u201311" = '15.666'
SELECT MAX("EL places") FROM "table_12192" WHERE "2010\u201311" = '15.666'