Indonesia's inflation estimated at 3.2 percent this year
For December, consumer price index is projected between 0.5 to 0.6 percent on a monthly basis, he said.
Weak purchasing power is the main cause of subdued inflation this year, according to experts and surveys.
For next year, Martowardojo said he expected inflation to reach 3 to 5 percent.
Inflation pressure will come from a planned electricity tariff hike for the middle class, as well as volatile food prices.
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