condition	mean	min	max
4 h after light	525.4	525.4	525.4
8 h after light	506.0	453.7	558.3
12 h after light	461.7	404.5	518.9
4 h after dark	660.3	490.7	829.9
8 h after dark	708.0	685.8	730.2
12 h after dark	740.55	706.8	774.3