condition	mean	min	max
4 h after light	2.56929	2.23806	2.90052
8 h after light	2.786275	2.73838	2.83417
12 h after light	2.885225	2.58331	3.18714
4 h after dark	3.94456	3.60286	4.37577
8 h after dark	3.01831	2.85019	3.11707
12 h after dark	2.13644	1.58655	2.51318