$59.4 billion

China reduced its holdings of the U.S. Treasury securities by $59.4 billion in 2011, but the country remains the largest foreign holder with a portfolio of $1.1007 trillion, according to the U.S. Treasury Department.

$3.1811 trillion

China's foreign exchange reserve stood at $3.1811 trillion at the end of 2011, an increase of $384.8 billion from a year ago, said the State Administration of Foreign Exchange.

8.97 trillion yuan

China's tax revenues rose 22.6 percent year on year to reach 8.97 trillion yuan ($1.42 trillion) in 2011, said the Ministry of Finance.

8.4 trillion yuan

China's logistics costs increased 18.5 percent from a year ago to 8.4 trillion yuan ($1.33 trillion) in 2011, said the China Federation of Logistics and Purchasing.