condition	mean	min	max
4 h after light	2.5	2.5	2.5
8 h after light	37.95	10.9	65.0
12 h after light	21.95	15.1	28.8
4 h after dark	22.85	12.3	33.4
8 h after dark	43.7	39.6	47.8
12 h after dark	41.25	29.8	52.7