Until 1980, water use went up steadily as population increased, necessitating investments in infrastructure and boosts to capacity. But since then, there has been a dramatic decoupling across the United States, with water use declining even as the population and the economy continued to grow. The U.S. Geological Survey found that water consumption peaked at 440 billion gallons (1,665 billion liters) per day before dropping in 1980 and then remained steady through the 1980s and 1990s. It rose slightly in 2000, but significantly declined between 2005 and 2010, when it fell to 350 billion gallons (1,325 billion liters) per day.