condition mean min max 4 h after light 149.355 144.944 153.766 8 h after light 62.54560000000001 60.9292 64.162 12 h after light 43.32335 36.5387 50.108 4 h after dark 39.8375 37.9321 42.4322 8 h after dark 83.9353 79.9813 86.9862 12 h after dark 129.07966666666667 120.504 134.996