condition	mean	min	max
4 h after light	256.4	256.4	256.4
8 h after light	205.8	200.7	210.9
12 h after light	232.5	194.6	270.4
4 h after dark	300.6	286.0	315.2
8 h after dark	271.6	266.7	276.5
12 h after dark	241.55	239.4	243.7