In 1693 Halley published an article on life annuities ( a kind of pension ) , which featured an analysis of age-at-death on the basis of the Breslau statistics Caspar Neumann had been able to provide . In 1693 Halley published an article on life annuities , which featured an analysis of age-at-death on the basis of the Breslau statistics Caspar Neumann had been able to provide .