condition	mean	min	max
4 h after light	3.5103600000000004	3.19389	3.82683
8 h after light	3.121975	3.10049	3.14346
12 h after light	4.835585	4.7422	4.92897
4 h after dark	7.00826	6.80932	7.2072
8 h after dark	6.821265	6.7911	6.85143
12 h after dark	5.4491700000000005	5.19085	5.70749