condition	mean	min	max
4 h after light	6.12241	3.81468	8.43014
8 h after light	4.36502	4.24936	4.48068
12 h after light	3.720675	3.67567	3.76568
4 h after dark	3.3117533333333333	2.34667	4.4179
8 h after dark	6.08061	5.3006	7.5557
12 h after dark	5.012106666666667	3.1092	6.38635