The numbers of income recipients are plotted on the horizontal axis, not in absolute terms but in cumulative percentages. For example, at point 20, we have the lowest(poorest)20% of the population; at point 60,we have the bottom 60%;and at the end of the axis,all 100% of the population has been accounted for. The vertical axis shows the share of total income received by each percentage of population. It is also cumulative up to 100%, meaning that both axes are the same length. The entire figure is enclosed in a square, and a diagonal line is drawn from the lower left corner(the origin) of the square to the upper right corner. At every point on that diagonal,the percentage of income received is exactly equal to the percentage of income recipients for example, the point halfway along the length of the diagonal represents 50% of the income being distributed to exactly 50% of the population. At the three-quarters point on the diagonal,75% of the income would be distributed to 75% of the population.