condition	mean	min	max
4 h after light	543.3	543.3	543.3
8 h after light	512.4	396.5	628.3
12 h after light	547.85	461.5	634.2
4 h after dark	576.1	545.5	606.7
8 h after dark	447.5	436.3	458.7
12 h after dark	518.55	505.7	531.4