condition mean min max 0 h after light 1.35915 0.0 2.7183 2 h after light 3.179675 2.7793 3.58005 4 h after light 0.141847 0.0 0.283694 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 3.017005 0.0 6.03401 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0