In a new report, the High Pay Commission claims that the income disparity between the UK's 0.1% of earners and the rest, should it continue to grow at the current rate, will by 2030 return to a level not seen since the days when Queen Victoria was on the throne. But how did it reach this conclusion?

To make its historical estimates, the High Pay Commission used data taken from the Paris School of Economics's World Top Incomes Database (Alvaredo, F., Atkinson, A. B., Piketty, T. and Saez, E). Data for the top 0.1% of UK earners only starts from 1913, when the share of national income earned by this group was charted at 11.24%. Following the curve of the data backwards, the High Pay Commission estimates that in 1900 this figure would have stood at around 14.5%.

The data shows that by 1978, top-line earnings as a percentage of national income had fallen to a historical low of just 1.24%. But they're on the rise again. Following the curve of the data, the High Pay Commission estimates that the 14% figure will be reached again by 2030 should the current pattern be sustained.

The database currently contains executive pay data for 15 of the world's leading economies. There are historical statistics for the top 10%, 5%, 1%, 0.5%, 0.1% and 0.01% of earners, which make for some pretty interesting comparisons.

You can download the full set here - what can you do with it?

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