condition	mean	min	max
4 h after light	316.0	316.0	316.0
8 h after light	346.9	341.6	352.2
12 h after light	281.9	265.9	297.9
4 h after dark	239.3	227.7	250.9
8 h after dark	238.45	205.9	271.0
12 h after dark	288.9	284.0	293.8