The graph shows the percentage of 15-year-olds with low literacy (reading and writing) levels in four countries. Summarise the information by selecting and reporting the main features making comparisons where relevant.

The line graph compares the percentage of 15-year-olds with a low level of literacy in terms of reading and writing skills in four different countries. Overall, Austria constantly had the highest figures, whereas Ireland started with the lowest. Most countries went through a gradual increase over the period, except Denmark, which showed a small decline. […]