Cumulative income/demand Percentage

1. John Creighto

811
Does anyone have any links where I can see graphs of either the cumulative demand or cumulative income. I would like for these graphs the percentage of population on the x axis? I understand it is understand it is suppose to follow a lorenz curve and from it you can calculate the Giini coefficient which measures income inequality. Given all the talk about income inequality you would think such data would be easier to find.