Currently, in terms of volume, we have about 2 million pieces of $ notes in circulation. This is equivalent to 4 pcs per capita or $ per person, by value. Since the $ note changes hands more frequently than other banknotes, it gets easily exposed to dirt and moisture that eventually shortens its life expectancy.
However, with polymer substrate we expect the notes to last 3 – 5 times longer than the life of the existing $ paper note. Its durability saves cost for us. Not only that, but we should also have eco-friendly and cleaner notes in circulation which are also difficult to counterfeit.