condition	mean	min	max
4 h after light	10.3979195	9.109282	11.686557
8 h after light	9.1586015	8.609842	9.707361
12 h after light	9.2552585	8.972492	9.538025
4 h after dark	15.059289	10.07399	20.044588
8 h after dark	11.721061500000001	9.57014	13.871983
12 h after dark	8.14376	8.14376	8.14376