condition	mean	min	max
4 h after light	77.4	77.4	77.4
8 h after light	39.95	6.0	73.9
12 h after light	25.6	9.1	42.1
4 h after dark	64.35	64.0	64.7
8 h after dark	84.4	65.8	103.0
12 h after dark	67.85	62.0	73.7