condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 1.30556 0.0 2.61112 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0