condition	mean	min	max
4 h after light	3.9	3.9	3.9
8 h after light	4.95	2.6	7.3
12 h after light	4.0	3.2	4.8
4 h after dark	26.5	24.6	28.4
8 h after dark	16.8	3.0	30.6
12 h after dark	27.25	27.0	27.5