Negative difference scores on these graphs indicate that a larger proportion of more experienced teachers teach in less challenging schools. The Flemish Community appears at the bottom of the list, indicating that more experienced teachers are more likely to be in schools with a less diverse student population, whereas beginner teachers are more likely to be concentrated in schools with many students from disadvantaged home backgrounds. The European Commission (2015) highlights that there is an additional challenge of a particularly high turnover rate of relatively inexperienced teachers in Brussels schools.