The given bar chart provides information about the percentage of productivity of different areas: Asia, Europe and other parts of the world over the period of 160 years, starting in 1840.
Overall, the proportion of production output from Asia and the rest of the world had the a downward trend, while the opposite trend was seen from the figure for Europe. In addition, the share of Asia stood at the highest point in 1920, similar to other areas (except Europe) in 1840.
Looking at the details, what stands out of the graph is that the percentage of product from Asia experienced a increase sharply from 1840 to 1920, reaching to 50% (the highest point). However, from this year on, there was a gradual decline at nearly 38% in 2000. The proportion of the rest of the world was similar to the figure for Asia. In 1840, beginning with 50%, the data of other areas witnessed a decrease significantly over 80 years by about 22%. After that, the proportion remarkably went to around 45% in 2000.
By comparison to the mentioned data, the percentage of productivity in Europe differ from them in increase trend. Starting in 1840 with just 10%, the figure rose to nearly 40% which is similar to the share of Asia in the same year. After 40 years, the proportion of production output from Europe fell slight to more than 30% in 2000.