condition	mean	min	max
4 h after light	445.4	445.4	445.4
8 h after light	534.5	469.7	599.3
12 h after light	500.3	476.1	524.5
4 h after dark	575.5	560.4	590.6
8 h after dark	637.25	605.5	669.0
12 h after dark	630.0	610.8	649.2