China's yuan funds outstanding for foreign exchange continued to decline in November, according to data released on Monday by the People's Bank of China, the country's central bank.

The funds stood at 21.26 trillion yuan (about 3.09 trillion U.S. dollars) at the end of last month, down from 21.32 trillion yuan in October.

As the Chinese currency – the yuan – is not freely convertible under the capital account, the central bank has to purchase foreign currency generated by a trade surplus and foreign investment in the country, adding funds to the money market.

Such funds are an important indicator of cross-border foreign capital flows and domestic yuan liquidity.

A similar measure of capital flows, the foreign exchange reserves edged up to 3.0617 trillion U.S. dollars in November after dropping for three consecutive months.

"China's international balance of payments largely remained stable in November," said Wang Chunying, a spokesperson of the State Administration of Foreign Exchange.