condition	mean	min	max
4 h after light	19.9	19.9	19.9
8 h after light	7.75	2.3	13.2
12 h after light	40.7	36.8	44.6
4 h after dark	31.25	26.2	36.3
8 h after dark	26.75	3.2	50.3
12 h after dark	36.6	32.5	40.7