CREATE TABLE table_61844 ("Tournament" CLOB, "2009" CLOB, "2010" CLOB, "2011" CLOB, "2012" CLOB, "2013" CLOB)

What is the 2013 of the grand slam tournaments?
SELECT "2013" FROM table_61844 WHERE "Tournament" = 'grand slam tournaments'
SELECT "2013" FROM "table_61844" WHERE "Tournament" = 'grand slam tournaments'