The PAP report was based on a series of economic forecasts contained in a survey released by the finance ministry.
"Taking into consideration economic activity in the main sectors of the economy it can be estimated that growth in the first quarter of 2005 in comparison to the same quarter of the previous year will measure about 2.5 percent," the ministry was quoted as saying.
Growth in the last quarter of 2005 was 3.9 percent. In the first quarter last year it was 6.9 percent.
"The decline in the annual growth indicator is chiefly the effect of a high statistical base," the finance ministry said.