condition	mean	min	max
4 h after light	71.3	71.3	71.3
8 h after light	117.4	90.0	144.8
12 h after light	240.7	238.9	242.5
4 h after dark	179.55	145.4	213.7
8 h after dark	144.5	120.7	168.3
12 h after dark	127.35	114.0	140.7