condition	mean	min	max
4 h after light	9.3	9.3	9.3
8 h after light	38.8	5.0	72.6
12 h after light	16.65	13.2	20.1
4 h after dark	16.1	6.4	25.8
8 h after dark	32.45	26.0	38.9
12 h after dark	20.75	9.5	32.0