condition mean min max 4 h after light 0.2824675 0.218654 0.346281 8 h after light 0.217478 0.127526 0.30743 12 h after light 1.27901 1.27714 1.28088 4 h after dark 2.71274 2.43057 2.99491 8 h after dark 1.391175 1.13245 1.6499 12 h after dark 0.6701515 0.588087 0.752216