Bebbington, K. (Creator), Kingma, S. (Creator), Fairfield, E. (Creator), Dugdale, H. L. (Creator), Komdeur, J. (Creator), Spurgin, L. (Creator), Richardson, D. (Creator) (2017). Primary data Bebbington et al. 2017 PNAS.xlsx. Figshare. 10.6084/m9.figshare.5432089.v1