condition mean min max 4 h after light 2.625075 2.39105 2.8591 8 h after light 2.6256500000000003 2.60771 2.64359 12 h after light 3.33331 3.1191 3.54752 4 h after dark 4.873175 4.86276 4.88359 8 h after dark 4.93609 4.91436 4.95782 12 h after dark 4.290315 4.26768 4.31295