condition	mean	min	max
4 h after light	38.8	38.8	38.8
8 h after light	43.95	26.8	61.1
12 h after light	12.15	5.5	18.8
4 h after dark	12.8	5.8	19.8
8 h after dark	13.2	1.7	24.7
12 h after dark	24.85	23.3	26.4