condition	mean	min	max
4 h after light	9.59144	9.35074	9.7232
8 h after light	9.539316666666666	9.43399	9.59274
12 h after light	9.46428	9.24964	9.62318
4 h after dark	9.41569	9.25843	9.66837
8 h after dark	9.539823333333333	9.471260000000001	9.66737
12 h after dark	9.588993333333333	9.52929	9.62813