condition mean min max 4 h after light 1.24288 1.0387 1.44706 8 h after light 3.145735 3.07358 3.21789 12 h after light 4.2547999999999995 4.0007 4.5089 4 h after dark 3.72771 3.70082 3.7546 8 h after dark 2.45822 2.35435 2.56209 12 h after dark 2.134955 2.10197 2.16794