condition	mean	min	max
4 h after light	19.5	19.5	19.5
8 h after light	26.95	22.5	31.4
12 h after light	31.75	4.5	59.0
4 h after dark	37.85	35.1	40.6
8 h after dark	27.45	15.1	39.8
12 h after dark	44.0	32.8	55.2