condition mean min max 2 h after light 2.006825 1.36708 3.00786 6 h after light 1.4589105 0.758923 2.24058 10 h after light 1.782508 0.951228 3.44662 14 h after light 1.94027 1.08922 2.93762 18 h after light 1.8344966666666667 1.02842 2.96922 2 h after dark 1.7269233333333334 1.15724 2.38775