condition mean min max 0 h after light 0.0351732 0.0 0.0703464 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.070879 0.0 0.141758 12 h after dark 0.0335418 0.0 0.0670836