The line graph illustrates the data on proportion of revenue top 1 percent of public earners over four decade period starting from 1975 in 7 countries according to CEA 2017 Economic report of the President, relying on World Wealth and Income Database.
From an overall perspective, it is readily apparent that except for the UK and Germany, all countries’ affluent parts’ income recorded from the beginning of the period (1975), and it is notably that every country indicate upward trend, with Italy, Japan and France increasing less significantly compared to others. Additionally, the US has the richest layer while the lowest income belonged to France.
Focusing on Germany, the share of it underwent wild fluctuations over the period by 2007 from 10% to 4% more ,however, this share was not maintained. Although Canada started at approximately 9%, the highest proportion, in 1975, the US overtook, doubling from 8% to 18% when Canada reached to around 14%. In 1990, the UK joined the to poll and saw a significant increase from 10% to over 15% before plunging by 2%.
As for rest of countries they experienced mildly fluctuations and followed almost similar patterns. They reached nearly 9%, starting at over and under 7% which meant that there is no big difference in the salary of poor and rich in those countries.