condition	mean	min	max
4 h after light	19.983150000000002	18.8504	21.1159
8 h after light	11.82475	11.2023	12.4472
12 h after light	9.429485	9.28883	9.57014
4 h after dark	11.400849999999998	11.3273	11.4744
8 h after dark	10.49895	10.0388	10.9591
12 h after dark	14.2797	13.3936	15.1658