condition mean min max 4 h after light 2.333455 1.94065 2.72626 8 h after light 2.45853 2.35684 2.56022 12 h after light 3.210175 3.02725 3.3931 4 h after dark 4.067733333333333 3.87025 4.3597 8 h after dark 3.7630566666666665 3.54954 3.95542 12 h after dark 3.23043 3.01686 3.41771