condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0878475 0.0 0.175695 8 h after light 0.092202 0.0 0.184404 12 h after light 0.0 0.0 0.0 2 h after dark 0.1003135 0.0 0.200627 4 h after dark 0.0 0.0 0.0 8 h after dark 0.1944165 0.0 0.388833 12 h after dark 0.0 0.0 0.0