Israel’s high school graduation rate was 92% in 2010 (OECD average 84%). Israel spent 7.2% of GDP on educational institutions in 2009 (sixth highest in the world). And pre-school education is now free for all Israeli children from age 3 upward.
http://www.edu-active.com/news/2013/sep/21/most-educated-countries-wg2orld.html