condition	mean	min	max
4 h after light	17.206608	16.838379	17.574837
8 h after light	17.8194235	17.39637	18.242477
12 h after light	16.936984	16.299131	17.574837
4 h after dark	17.491035	17.051959	17.930111
8 h after dark	17.069944	16.565051	17.574837
12 h after dark	17.655871	17.655871	17.655871