condition	mean	min	max
4 h after light	20.4387	16.0732	24.8042
8 h after light	16.4236	15.9293	16.9179
12 h after light	18.633699999999997	17.6071	19.6603
4 h after dark	24.31635	17.8766	30.7561
8 h after dark	17.6372	17.4422	17.8322
12 h after dark	17.622	17.6038	17.6402