China's middle class citizens are expected to grow to 14 million by the end of this year, up by more than 2 million from those who registered last year, a wealth management survey showed.

The survey, conducted by Forbes China and CreditEase, a wealth-management firm based in Beijing, showed that the number of Chinese bracketed as middle class is set to rise this year as private Chinese invested capital rose to US $1.52 trillion in 2013.

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The survey result, which was incorporated in the report dubbed Chinese Mass Affluent Report 2014, said the rise in private invested capital was driven by existing deposits, cash, and the increase of the value of properties.

China's middle class, which reached 11.97 million at the end of last year, refers to people who have personal investment capital ranging from 600,000 Yuan (US $96,480) to 6 million Yuan (US $964,000).

The investment capital includes cash, bond, insurance, stocks, funds, and other financial products and property that are ready to be invested.

The survey also showed that 54 percent of the Chinese middle class have finished a bachelor's degree, and 10 percent possess at least a master's degree.

Around 60 percent of those who answered the survey were aged 30 to 50, the report said.

The survey also found out that most Chinese middle class own a home, with 15.5 percent saying they have more than three properties and are keen on buying more in the future. Around 58 percent also said they do not have existing loans.

The report released by Forbes China and CreditEase also revealed that happiness level of China's middle class reached 66.5 percent.

However, 75 percent of the respondents said they are stressed and 10 percent claimed they were under serious pressure. Only 23 said they don't feel pressure or stress.