What percentage of Japan's population was elderly in 2017?

In 2017, approximately 21% of Japan's population was classified as elderly, which is defined as individuals aged 65 and over. This figure is significant in understanding Japan's demographic trends, as it highlights the challenges faced by a society with a rapidly aging population. The rising percentage of elderly individuals reflects a combination of low birth rates and high life expectancy, resulting in an increasing proportion of the population that is elderly. This demographic shift brings about various social and economic implications, including the need for enhanced healthcare services, pension systems, and potential labor shortages. Japan's aging population serves as a critical case study in the discussion of population dynamics and their impact on society.