condition	mean	min	max
4 h after light	4.242955	3.65272	4.83319
8 h after light	4.141579999999999	4.09845	4.18471
12 h after light	4.47034	4.10864	4.83204
4 h after dark	6.02416	4.98759	7.06073
8 h after dark	5.213235	5.09041	5.33606
12 h after dark	4.884539999999999	4.42633	5.34275