condition	mean	min	max
4 h after light	6656.9	6656.9	6656.9
8 h after light	6334.3	6283.0	6385.6
12 h after light	7569.9	6429.5	8710.3
4 h after dark	8929.9	8619.8	9240.0
8 h after dark	6856.95	6445.9	7268.0
12 h after dark	5678.65	5112.9	6244.4