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 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.429831 0.0 0.859662 4 h after dark 0.2082285 0.0 0.416457 8 h after dark 0.0 0.0 0.0 12 h after dark 0.214306 0.0 0.428612