The UK economy emerged from recession in the three months from July to September, helped by the Olympic Games.
The economy grew by 1.0%, according to official gross domestic product figures (GDP), which measure the value of everything produced in the country.
The Office for National Statistics said that Olympic ticket sales had added 0.2 percentage points to the figures. All Olympic and Paralympic ticket sales counted towards July to September's GDP figure.
The economy had been in recession for the previous nine months and has still not recovered the levels of output seen before the financial crisis in 2008.
The ONS said that beyond the effect of ticket sales it was hard to put an exact figure on the Olympic effect, although it cited increased hotel and restaurant activity in London as well as strength from employment agencies.
The GDP figures were also enhanced by comparison with the previous three months, because the second quarter had an extra public holiday as part of the Diamond Jubilee celebrations in June, as well as unusually bad weather, which reduced growth.
The data is a preliminary estimate from the ONS, meaning that the third-quarter figures could be revised higher or lower.
The ONS said that the economy had contracted by 6.4% between the start of 2008 and the middle of 2009, and had since recovered about half of that output.
The level of output in the third quarter of 2012 was almost exactly the same as it had been in the third quarter of 2011.
