Market consumers and businesses increased their spending in the third quarter as the U.K. economy registered a resilient performance after the vote to ditch the European Union.

Household spending rose 0.7 percent from the second quarter and business investment increased 0.9 percent, the Office for National Statistics said on Friday. Growth overall was unrevised at 0.5 percent, with trade providing the strongest contribution. A separate report from the Confederation of British Industry showed retail sales grew at their fastest annual pace in more than a year in November.

The Office for National Statistics report covers the first full quarter of gross domestic product since Britons upended U.K. politics and roiled financial markets by voting to leave the European Union. While there are few signs of any significant effect for now, growth is expected to slow next year.

In its twice-yearly review, the Office for Budget Responsibility on Wednesday lowered its 2017 forecast to 1.4 percent from 2.2 percent, saying uncertainty will lead firms to delay investment while the falling pound squeezes consumers by pushing up the cost of imports.

The jump in business investment surprised economists, who had widely predicted a decline as the referendum vote took its toll.

The increase in consumer spending was down from 0.9 percent growth between April and June but in line with the average of recent quarters.

The Confederation of British Industry said its monthly retail sales index rose to 26 in November -- the highest since September 2015 -- and stores anticipate another gain next month. They may be getting a boost from overseas visitors taking advantage of the weak pound, economists say.

The exchange rate may also be starting to improve trade by making British exports cheaper and imports more expensive. Net trade added 0.7 percentage point to GDP in the three months through September, the biggest contribution since the start of 2014 and the first this year. Exports rose 0.7 percent and imports fell 1.5 percent.

An index of the services industry rose 0.2 percent in September, leaving output 0.8 percent higher on the quarter. That more than offset declines in industrial production and construction. GDP growth overall was down from 0.7 percent in the second quarter.