Japan's December Producer Price Index (PPI) year-on-year growth rate was 2.4%, in line with expectations, and a decline from the previous month's 2.7%. On a monthly basis, the PPI increased by 0.1%, slightly below the expected 0.2% increase, and weaker than the previous month's 0.3% rise. This set of data indicates that Japan's inflationary pressure has eased, and the growth rate of producer prices is stabilizing.