condition	mean	min	max
4 h after light	50.1	50.1	50.1
8 h after light	41.0	6.2	75.8
12 h after light	41.3	40.6	42.0
4 h after dark	27.1	12.2	42.0
8 h after dark	26.45	9.5	43.4
12 h after dark	52.7	48.8	56.6