By Katharina Buchholz
The G20, which is meeting this weekend in New Delhi, India, was founded in 1999 and has over the course of the past two decades seen a major shift in its power dynamic. In 2002, the United States had by far the biggest economic clout in the group with a share of around a third of the its GDP – more than double that of the BRICS bloc, which assembled in its current form between 2009 and 2010 but previously saw all its members join the G20 inaugural line-up.