condition	mean	min	max
4 h after light	54.765441	50.130518	59.400364
8 h after light	51.006212500000004	50.051049	51.961376
12 h after light	49.573139999999995	48.848112	50.298168
4 h after dark	38.805941499999996	27.313715	50.298168
8 h after dark	39.5637265	34.979489	44.147964
12 h after dark	49.438477	49.438477	49.438477