Inflation in Indonesia fell to its lowest level in 19 months in November, giving Bank Indonesia, the central bank, some scope to reduce its key interest rate amid increasing concerns about the global economy.

The consumer price index, a measure of inflation, rose 4.15 percent in November from the same period a year ago, the Central Statistics Agency (BPS) said on Thursday. It was the smallest rise since a 3.91 percent increase in April 2010.