condition mean min max 0 h after light 1.6603370000000002 0.906814 2.41386 4 h after light 2.11727 2.08244 2.1521 8 h after light 1.97919 1.19407 2.76431 4 h after dark 2.377745 1.18536 3.57013 8 h after dark 8.802810000000001 8.69054 8.91508 12 h after dark 1.78171 1.20531 2.35811