condition mean min max 0 h after light 0.068897 0.0 0.137794 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.4263745 0.28353 0.569219 12 h after light 0.147842 0.138394 0.15729 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0