The National Statistical Institute (INE) revised this Friday, down from one-tenth of a year's May inflation to 0.4%, a rate lower by 0.4 percentage points than in April.
According to INE, "rounded to one decimal place, this rate is 0.1 percentage points lower than the rapid estimate released on May 31st."
According to the latest published data on the Consumer Price Index (CPI), underlying inflation (which excludes unprocessed and energy-based food products) changed by 0.5% year-on-year, down 0.3 percentage points to that registered in April.
The monthly variation of the CPI was 0.1% (0.6% in the previous month and 0.4% in May 2018).
The average change over the last twelve months was 1.0%, the same as in the previous month.
The Portuguese Harmonized Index of Consumer Prices (HICP) registered a year-on-year change of 0.3%, 0.6 percentage points lower than the previous month and 0.9 percentage points lower than the Eurostat estimate for the euro area (in the previous month, this difference was 0.8 percentage points).
The HICP recorded a monthly rise of 0.3% (1.0% in the previous month and 0.8% in May 2018) and an average increase over the last twelve months of 1.1% percentage in April), the INE points out.