condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.0601735 0.0 0.120347 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0596175 0.0 0.119235