Tokyo, officially the Tokyo Metropolis, is the capital city of Japan and one of the most populous cities in the world with a population of over 14 million residents as of 2023. The Greater Tokyo Area, which includes Tokyo and nearby six prefectures, is the most-populous metropolitan area in the world, with 40.8 million residents as of 2023. Tokyo's nominal gross domestic output was 113.7 trillion yen or US$1.04 trillion in FY2021 and accounted for 20.7% of the country's total economic output, which converts to 8.07 million yen or US$73,820 per capita. Including the Greater Tokyo Area, Tokyo is the second-largest metropolitan economy in the world after New York, with a 2022 gross metropolitan product estimated at US$2.08 trillion.