condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0266333 0.0 0.0532666 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0146699 0.0 0.0293398 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0142158 0.0 0.0284316 12 h after dark 0.0 0.0 0.0