condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.047828666666666665 0.0 0.102822 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.024903966666666666 0.0 0.0747119 12 h after dark 0.0 0.0 0.0