The chart illustrates the proportion of the share income earned by the top 1 percent of the population in seven major world powers from 1975 to 2015.
At first glance, it is apparent that United States experienced a remarkable trend, while United Kingdom and Canada demonstrated erratic change with peaks and declines. Germany also showed a potential level and had a noticeable increase.
Looking at the chart in more detail, one can see that the data for United States started at 7.5% approximately, then it increased to 17% dramatically in 2000. Furthermore, from that to 2015, it underwent some noticeable changes and finally reached at around 16%. The opposite trend was true for the data for Germany, when it decreased erratically from 10% to 7% between 1975 and 1995. However, from that to 2010, it proliferated from 7% to 13% dramatically then it had some signs of decline. We can see the difference at the figure for Canada and United Kingdom, while they began at 7.5% approximately in 1975, then it burgeoned and reached at same 13% in 2005. Nevertheless, they experienced irregulary changes and finally finished at 12.5%.
The difference can be seen at the data for France, when it began slightly below 10%, then increased to approximately 10% by 2015. Moreover, Italy started under 10%, peaking slightly above 10% in the early 2000s then declined back near initial values. Finally, Japan started near 5%, increased to just above 10% around 2000, then declined to above 5% by 2015.