condition mean min max 4 h after light 0.6649173333333332 0.0 1.4002 8 h after light 1.3851623333333334 0.632417 2.00673 12 h after light 1.247843 0.525129 1.91421 4 h after dark 1.6100433333333333 1.2103 1.81192 8 h after dark 0.707897 0.310554 1.22997 12 h after dark 0.527706 0.224946 0.7368