condition	mean	min	max
4 h after light	3.1	3.1	3.1
8 h after light	32.1	26.7	37.5
12 h after light	8.5	4.5	12.5
4 h after dark	8.55	5.8	11.3
8 h after dark	32.45	29.7	35.2
12 h after dark	12.1	3.4	20.8