condition mean min max 4 h after light 0.61041 0.58624 0.63458 8 h after light 0.8867175 0.693955 1.07948 12 h after light 1.22741 1.18917 1.26565 4 h after dark 3.5240799999999997 2.94586 4.1023 8 h after dark 1.840165 1.74004 1.94029 12 h after dark 0.9633995 0.880729 1.04607