condition	mean	min	max
4 h after light	7.696593333333333	7.489730000000001	7.95533
8 h after light	6.8419533333333336	6.78388	6.94612
12 h after light	7.114793333333333	7.013660000000001	7.17408
4 h after dark	6.526586666666667	6.44948	6.64465
8 h after dark	6.52851	6.38701	6.6109
12 h after dark	6.854640000000001	6.59278	7.115360000000001