At maturity, the foreign central bank returns the dollars back to the Federal Reserve in exchange for its own currency at the same exchange rate that prevailed at the time of the initial draw, and pays interest as well. The loans provided by the foreign central banks to institutions abroad are offered at rates that would be above market rates in normal times.
Following a generalised 4  decrease in the previous two years, global food prices also increased in 2016. Due to these factors, global inflation increased slightly from 2.8 percent in 2015 to 2.9 percent in 2016, but much lower than the forecast of 3.4 percent at the beginning of the year.