The charts below show the percentage of total spending on four different categories by students in a European country from 1985 to 2015.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.
![](https://daxue-oss.koocdn.com/upload/ti/sardine/2520000-2521000/2520795/44b234654f844cfbafac9a3777ffa1a9.png)