The line graphs illustrate the proportion of people who work in four different countries in a 90-year period, starting from 1960. Overall, it is evident that all nations experienced decrease with Japan showing the most dramatic decline.
At the beginning, Germany’s working-age population stood at around 67, which was about 3% higher than Japan’s. This figure bottomed out at around 63% in 1970, before peaking to the same percentage as Japan at less than 70% in 1990. After that, both countries exhibit a downward trend until the end of the given timeframe. therefore, Germany dropped steadily, while Japan exhibits a fluctuation plunge, ending as the least figure with about 51%
Turning to France and US, their figure went through a period of slight fluctuation. It is notable that although the timing of changes differed, their overall patterns were similar. The percentage of US workers decreased from 67% to 60% in four decades, starting from 2000, before remaining unchanged until the end. France followed a comparable trend, falling slightly below 60% by 2050.