condition	mean	min	max
4 h after light	572.1	572.1	572.1
8 h after light	548.5	538.9	558.1
12 h after light	547.8	511.9	583.7
4 h after dark	642.5	583.2	701.8
8 h after dark	625.3	597.4	653.2
12 h after dark	533.95	525.2	542.7