condition	mean	min	max
4 h after light	4.276883333333333	4.23948	4.32146
8 h after light	4.22782	4.19129	4.2571
12 h after light	4.1898833333333325	4.167269999999999	4.21557
4 h after dark	4.194683333333333	4.12705	4.27382
8 h after dark	4.2118400000000005	4.1847	4.26436
12 h after dark	4.29488	4.12801	4.39039