condition	mean	min	max
4 h after light	7.8647833333333335	7.61706	8.07435
8 h after light	7.403076666666666	7.3075600000000005	7.539439999999999
12 h after light	7.66596	7.50328	7.7967699999999995
4 h after dark	7.833106666666667	7.74108	7.9421100000000004
8 h after dark	7.676316666666667	7.590330000000001	7.76647
12 h after dark	7.894869999999999	7.68147	8.023639999999999