Japan ranks 15th among 122 countries in the World Economic Forum's first Human Capital Index report on countries' abilities to develop and deploy healthy, educated and able workers, the forum said Tuesday.

The report by the forum, known for its annual meeting of leaders from business, politics, academia and other fields, in Davos, Switzerland, showed Singapore, which ranked third, was the most successful Asian country in terms of developing human resources.

The Geneva-based organization accessed countries' abilities to do so through four distinct pillars: education; health and wellness; workforce and employment; and helping people successfully develop their skills.