condition	mean	min	max
4 h after light	3.66924	3.05804	4.28044
8 h after light	2.57005	1.67209	3.46801
12 h after light	3.409085	2.92148	3.89669
4 h after dark	6.48976	6.21947	6.76005
8 h after dark	5.80248	5.14884	6.45612
12 h after dark	5.18666	4.67481	5.69851