condition mean min max 0 h after light 1.5569950000000001 1.55561 1.55838 4 h after light 1.8827099999999999 1.71418 2.05124 8 h after light 2.294685 2.23555 2.35382 4 h after dark 3.016535 2.97746 3.05561 8 h after dark 3.167955 3.06416 3.27175 12 h after dark 1.57731 1.18798 1.96664