condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.16905866666666666 0.0 0.507176 3 h after dark 0.6291033333333333 0.0 1.17065 6 h after dark 0.0 0.0 0.0 9 h after dark 0.206466 0.0 0.619398 12 h after dark 0.0 0.0 0.0