condition mean min max 0 h after light 1.656745 0.78341 2.53008 2 h after light 0.0 0.0 0.0 4 h after light 1.194005 0.0 2.38801 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.806535 0.0 1.61307 4 h after dark 0.3907195 0.0 0.781439 8 h after dark 0.440578 0.0 0.881156 12 h after dark 1.2383725 0.804245 1.6725