condition	mean	min	max
0 h after light	5.221125000000001	5.11568	5.32657
4 h after light	3.928725	3.13747	4.71998
8 h after light	2.28503	2.19185	2.37821
4 h after dark	4.637785	4.62864	4.64693
8 h after dark	5.2189	5.197	5.2408
12 h after dark	5.19572	4.84013	5.55131