CREATE TABLE table_7153 ("Event" TEXT, "2006\\u201307" TEXT, "2007\\u201308" TEXT, "2008\\u201309" TEXT, "2009\\u201310" TEXT, "2010\\u201311" TEXT, "2011\\u201312" TEXT, "2012\\u201313" TEXT)

What is the value in 2006-07 when the value is SF in 2008-09?
SELECT "2006\u201307" FROM table_7153 WHERE "2008\u201309" = 'sf'
SELECT "2006\u201307" FROM "table_7153" WHERE "2008\u201309" = 'sf'