condition	mean	min	max
4 h after light	40.3	40.3	40.3
8 h after light	45.0	30.7	59.3
12 h after light	36.85	33.5	40.2
4 h after dark	31.4	29.9	32.9
8 h after dark	49.0	39.5	58.5
12 h after dark	51.9	44.8	59.0