condition	mean	min	max
4 h after light	4.145196666666667	3.08428	5.33733
8 h after light	4.218567	0.922921	6.76383
12 h after light	3.9831600000000003	2.57126	5.56568
4 h after dark	5.924476666666667	4.02389	7.54281
8 h after dark	5.28983	3.95211	7.19546
12 h after dark	5.53412	4.60943	6.04437