Literacy in Croatia stands at 99.2 per cent. A worldwide study about the quality of living in different countries published by ''Newsweek'' in August 2010 ranked the Croatian education system at 22nd, to share the position with Austria. Primary education in Croatia starts at the age of six or seven and consists of eight grades. In 2007 a law was passed to increase free, noncompulsory education until 18 years of age. Compulsory education consists of eight grades of elementary school.