Question: Population of the roman empire at its peak?

context: No context provided
question: What was the official total population of the roman empire at its peak?
short_answers: 55–60 million
56,800,000
context: The Empire reached its largest expanse under Trajan (reigned 98–117), encompassing an area of 5 million square kilometres. The traditional population estimate of inhabitants accounted for between one-sixth and one-fourth of the world's total population and made it the largest population of any unified political entity in the West until the mid-19th century. Recent demographic studies have argued for a population peak ranging from to more than . Each of the three largest cities in the Empire—Rome, Alexandria, and Antioch—was almost twice the size of any European city at the beginning of the 17th century.
question: Population of the official roman empire at its peak compared to the world population?
short_answers: largest population of any unified political entity
between one-sixth and one-fourth of the world's total population
context: No context provided
question: Argued population of the roman empire at its peak according to recent demographic studies?
short_answers: 70 million to more than 100 million

Answer: The Roman Empire was one of the largest in history, with contiguous territories throughout Europe, North Africa, and the Middle East. The traditional population estimate of 55–60 million inhabitants[44] accounted for between one-sixth and one-fourth of the world's total population[45] and made it the largest population of any unified political entity in the West until the mid-19th century.  Recent demographic studies have argued for a population peak ranging from 70 million to more than 100 million.