What is the fine-grained topic of the following text: In the 2014-2017 time frame, the school dropout rate among 8th form graduates in the 18-24 age bracket stood at 18.1% as compared to the European average of 10.6%, and the 10% target set for 2020. Only return the topic.
School dropout rate among 8th form graduates in the 2014-2017 time frame.