condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.10204925 0.0 0.408197 3 h after dark 0.0 0.0 0.0 6 h after dark 0.23865566666666668 0.0 0.715967 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0