In the last days of the week the dollar weakened against the euro and the yen. This was announced after a decline in March sales of existing homes higher than expected and an increase in requests for unemployment benefits.

Sales of previously owned homes declined 3 percent from the previous month to an annual amount of 4.57 million units, compared with the previous month's 4.71 million and 4.65 million envisaged by the experts, according to the National Association of Realtors.

Also met Thursday in the last week were processed 640,000 new requests for jobless benefits, 27,000 more than the previous, although the total figure in line with what economists expected.