condition mean min max 4 h after light 0.5734165 0.571187 0.575646 8 h after light 0.8464404999999999 0.791198 0.901683 12 h after light 4.27269 3.9113 4.63408 4 h after dark 6.720795 6.50542 6.93617 8 h after dark 1.2420499999999999 1.22 1.2641 12 h after dark 0.6738655 0.327501 1.02023