condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	9.85	1.3	18.4
12 h after light	21.95	19.9	24.0
4 h after dark	41.45	35.5	47.4
8 h after dark	37.65	33.0	42.3
12 h after dark	5.55	4.3	6.8