Thailand ranks fifth in the world for stress levels felt by business leaders over the past 12 months, according to a Grant Thornton Thailand survey.

A net 55 percent reported an increase in stress, behind only Greece (67 percent), China (60 percent), Taiwan (57 percent) and Vietnam (56 percent). Ian Pascoe, a managing partner of Grant Thornton Thailand, said many interviews were done last November during the massive floods, so the increase from a net 10 percent observed in 2010 is perhaps understandable.

Globally, levels of stress felt by business leaders showed their lowest annual increase since 2005, according to the Grant Thornton International Business Report.