data japan 2023Japan’s GDP and the yen exchange rate Japan’s GDP amounted to almost 592 trillion Japanese yen in 2025. When adjusted for inflation, the real GDP growth measured inTotal population for Japan in 2025 was 123,294,513, a 0.53% dec from 2022. Total population for Japan in 2022 was 123,951,692, a 0.53% dec from 2021. Total population is based on