data japan 2023Japan Exchange Rate against USD averaged 137.053 (USDJPY) in May 2025, compared with 133.475 USDJPY in the previous month. Japan Exchange Rate againstTotal 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.