There are only 13 female chief executive officers across the approximately 1,600 top-listed companies in Japan, a survey by Kyodo News showed Monday, demonstrating that the Asian country is still slow to increase diversity among its corporate decision-makers. The results revealed that female leaders head just 0.8 percent of the 1,643 listed firms on the Tokyo Stock Exchange’s top-tier Prime Market, based on investigations of fiscal 2023 financial statements released by the end of August. The lack of progress in appointing female CEOs is due partly to the hiring of top officers from outside bus…