Lucy is going skin diving to see coral off the coast of Mexico in sea water with a density of 1025 kg/m³. She dives to a depth of 20 m. If Lucy were to foolishly hold her breath as she ascends to the water's surface, by how many times would the volume of her lungs change (assuming the water temperature remains constant)? Your answer should be in the format: x.xx times 'bigger' or 'smaller'