condition	mean	min	max
4 h after light	598.4	598.4	598.4
8 h after light	590.8	572.0	609.6
12 h after light	937.7	513.5	1361.9
4 h after dark	841.4	500.3	1182.5
8 h after dark	425.6	374.7	476.5
12 h after dark	407.7	404.0	411.4