condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.24538996666666668 0.0492469 0.529784 12 h after light 0.15908093333333334 0.0732058 0.229937 4 h after dark 0.021400000000000002 0.0 0.0641801 8 h after dark 0.0 0.0 0.0 12 h after dark 0.1798793333333333 0.0 0.539638