condition mean min max 2 h after light 1.9355713333333333 0.754858 3.3241 6 h after light 1.6940106666666668 0.786514 2.31592 10 h after light 1.448093 0.416072 3.09918 14 h after light 1.0028355 0.763942 1.30706 18 h after light 1.4244211666666666 0.656737 1.97927 2 h after dark 1.141389 0.765904 1.31052