condition	mean	min	max
4 h after light	17.7	17.7	17.7
8 h after light	6.0	4.0	8.0
12 h after light	36.2	33.1	39.3
4 h after dark	40.0	34.9	45.1
8 h after dark	44.5	39.2	49.8
12 h after dark	34.15	21.7	46.6