Also, the length of a postdoc position has not stretched out, with a steady 60 % of former postdocs surveyed still having spent between two to four years in their post. (sciencemag.org)
About twice as many current postdocs participated as former postdocs. (sciencemag.org)
Most former postdocs (84 %) were 31 to 50 years of age. (sciencemag.org)