The Sino-American duopoly has loomed large in the medal count (22% of the total), but not outrageously so. Europe remains strong, while Asia and the Caribbean have made significant headway.
伦敦奥运会确认了这一趋势。中美两极在奖牌榜上的比重更大了（总数的22%），但没有显著增长。欧洲依然强势，亚洲和加勒比地区进步明显。