condition mean min max 4 h after light 0.0454797 0.0 0.0909594 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.03990305 0.0 0.0798061 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0