Evolution of National Nobel Prize Shares in the 20th Century

Abstract: We analyze the evolution of cumulative national shares of Nobel Prizes since 1901, properly taking into account that most prizes were divided among several laureates. We rank by citizenship at the moment of the award, and by country of birth. Surprisingly, graphs of this type have not been published before, even though they powerfully illustrate the century's migration patterns (brain drains and gains) in the sciences and other fields.