condition	mean	min	max
4 h after light	6.0	6.0	6.0
8 h after light	26.35	14.7	38.0
12 h after light	26.85	6.5	47.2
4 h after dark	27.9	23.2	32.6
8 h after dark	30.9	6.0	55.8
12 h after dark	27.7	23.1	32.3