 
<translate> Nkebi ahịrịokwu dị mkpa n'amaokwu ahụ bụ: Ọ bụ ezie na ọkwa nke akụ na ụba mba agbanweela nke ukwuu n'oge, United States nọgidere na-enwe ọnọdụ ya kachasị elu kemgbe Gilded Age, oge oge akụ na ụba ya hụrụ mgbasawanye ngwa ngwa, na-akarị Alaeze Ukwu Britain na usoro ndị eze Qing na mkpokọta mmepụta. Azịza ya bụ United States. <eng> The relevant sentence in the passage is: Although the rankings of national economies have changed considerably over time, the United States has maintained its top position since the Gilded Age, a time period in which its economy saw rapid expansion, surpassing the British Empire and Qing dynasty in aggregate output. The answer is the United States. 