The given line graphs illustrate the percentage of people at the age of 15 with low knowledge levels in different countries Austria, Denmark, Ireland and Sweden from 2000 to 2009.

The given line graphs illustrate the percentage of people at the age of 15 with low knowledge levels in different countries Austria, Denmark, Ireland and Sweden from 2000 to 2009. Overall, It is obvious that there was an upward trend in the figure for 15 years old along with minor education in Austria, Ireland, Sweden respectively. However, the opposite was true for the data of people with low literacy in Denmark. In 2000, the data of people at the age 15 with low education in Austria stood at 15%, before increased gradually to approximately 21% in the next 3 following years. The year 2006 witnessed an increase slightly by 1%, which was followed by an increase significantly to approximately 26% in 2009. While the Denmark proportion of 15 years old with low knowledge stood at 18% then decreased slightly to 15% over the period. The percentage of people who were 15 years old with low education in Sweden stood at approximately 13% in 2000 before remained stable at 14% in 2003. Additionally, There was a slowly raised to exactly 15% in 2006 but later increased significantly to 17% in 2009. While, The data of people in their 15 years old with low thinking in Ireland stood at 11% in 2000 and then remained the same at 11% in the following 3 years, but then increased sharply to 12% in 2006, which was following by an increased rapidly to 17% as same as Sweden over the research period.