The growth rate, released by China's the National Bureau of Statistics (NBS) today, moderated to 6.8 per cent for the fourth quarter, the lowest quarterly rate since the global financial crisis in 2009, and 6.9 per cent for 2015.
Chinese Premier Li Keqiang last year had said that the Chinese government targeted an annual economic growth of around seven per cent for 2015.
Today's figures put a grade on a tumultuous year that saw the slowdown's impact spill over to global markets and batter the government's reputation for competent economic management.
Analysts said if the economy slips below 6.8 per cent the government may have to opt for a stimulus package which it is trying to avoid, though investments in infrastructure, which is termed as mini stimulus measure has gone up substantially.
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Since then themarketexperienced severevolatility. Over 20 million small investors who lost heavily in the fluctuationsdeserted themarket.
Since last year the government has also been vocal about the slowdown saying that the Chinese economy has entered a "new normal" in view of the transition from a state-led investment and manufacturing growth to one more dependent on services and consumption.
Today's data said China's service sector contributed 50.5 per cent to the country's GDP in 2015, up from 48.1 per cent in 2014 as manufacturing which fired China's development in the last three decades has taken back seat.
Playing down the concerns over the slowdown, the NBS said
China's economy still "ran within a reasonable range" in 2015, with its structure further optimised, upgrading accelerated, new growth drivers strengthened and people's lives improved.
However, the country faces a daunting task in deepening reforms on all fronts and needs to step up supply-side structural reforms, NBS chief Wang Baoan said.
Major economic indicators softened in 2015, with industrial output growth slowing to 6.1 per cent year on year from 8.3 per cent in 2014.
Retail sales rose 10.7 per cent, down from 12 per cent registered in 2014.
Also the annual growth of China's property investment continued to cool to one percent in 2015, a sharp decrease from the 10.5-per cent growth in 2014.
The yearly reading was down from 1.3-per cent growth for the first 11 months and two-percent growth for the Jan-Oct period, according to NBS data.
Investment in residential housing, which accounts for about two-thirds of the total property investment, edged up 0. 4 per cent from a year earlier, compared with a growth of 0.7 per cent in the first 11 months.
Slowing property investment, which used to be a main driver of the Chinese economy, has been seen as a drag on overall economic growth.