However, some experts on how local GDP figures are compiled, told China Daily that gaps do occur and that national accounting often eliminates repeated calculations made by local governments.
Zhu Baoliang, an economist at the State Information Center, a think tank under the National Development and Reform Commission, said the central government is aware that local governments can tend to inflate their data.
But he added that as larger gaps appear, significantly larger than in recent years, the central government will be determined to make sure all future data are correct.
Last year, Tianjin led the nation's growth table with 13.8 percent year-on-year GDP growth, followed by Guizhou and Chongqing, both with 13.6 percent growth.
The Inner Mongolia autonomous region grew 11.5 percent in 2012, giving its economy a GDP value of 1.59 trillion yuan.
Given its relatively small population (25.7 million), its GDP per capita surpassed $10,000 for the first time, along with Beijing, Shanghai, Tianjin, Jiangsu and Zhejiang.
Lu Ming, an economics professor with Shanghai Jiao Tong University, said the fast growth being experienced in regions such as Tianjin, Chongqing and Inner Mongolia, was understandable, given their strategic locations and rich natural resources.
But the fast acceleration of many other regions also worried him.
A 9-year-old girl and her father are traveling to 31 major cities across China on foot and by hitchhiking.