The given line graph illustrates the percentage of working age population in four countries (France, United States, Japan and Germany) from 1960 to predictions extending until 2050.
Overall, the significantly greater percentage have seen in Japan and Germany from the start, whereas since 1985, both predictions started to sharply declined decade by. The steady fluctuation emerged in United states among working adults after the increase of proportions.
Japanese and German adults, who illustrated the substantial growth starting from 1960 and reaching 70% in 1990, which it was the peak, are forecast to drop in sharp amounts decade by decade, falling to above 51% decade by decade until 2050. Additionally, compared to Japanese, German inhabitants exhibited the sudden shift until 1965, falling below 64%, before climbing to the top in 1985.
The workers of United States, on the other hand, went through marginal fluctuations until 2000, reaching its top around with 63%, then declining in considerable amount, and expecting to continue declining until 2040. Regarding France, starting from above 60% in 1960, the rate acquired its highest rank of 66% respectively between 1990 and 2000. The rate represents lower level in 2050, showing almost 60%.