By the year 2020, the United States is expected to have a much larger population and a significantly higher gross national product compared to 1967. This growth will lead to a substantial increase in water recirculation rates in manufacturing processes. The trend towards higher recirculation rates is likely to continue, with the average rate doubling or even tripling by the end of this century. Economic growth is projected to be around 4% annually, potentially reaching $6.3 trillion by 2020.