condition mean min max 4 h after light 1.2466 0.0 1.99232 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 1.08294 0.0 2.24756 8 h after dark 0.0 0.0 0.0 12 h after dark 1.5972706666666667 0.0 3.94993