The given graph provides information about the proportion of adolescents at the age of fifteen having lack of ability to read and write in four nations: Austria, Denmark, Ireland and Sweden in the period of nine years starting from 2000.

The given graph provides information about the proportion of adolescents at the age of fifteen having lack of ability to read and write in four nations: Austria, Denmark, Ireland and Sweden in the period of nine years starting from 2000. In general, Austria, Sweden, Ireland, the mentioned countries were all increasing in the figure for 15-year-old children. Meanwhile, Denmark is the only nation with a downward trend througout the period. Australia by far had the biggest change ending at the highest point in the period. Both Sweden and Ireland had rose slightly and reached the same peak in 2009. The percentage of 15-year-old youngsters with low literacy levels in Austria commenced at 15% at the beginning. After that it experienced a significant growth to about 21% in 2003 and remained stable till 2006 before reaching its peak at the first place of the list with 27% in 2009. By contrast, the proportion of 15 years old children with poor reading and writing skills in Ireland shows a slight growth in the figure from 11% in 2000 to 12% in 2006 and took the same value as Sweden in 2009. The percentage in Sweden and Ireland respectively surpassed the figure in Denmark in 2007 and 2008.