This percentage dipped as low as 50 % in 2005 .
This percentage rebounded above 70 % in the seasons leading up to 2013 -- even as the perception that Europe was losing stars like Rory McIlroy , Martin Kaymer and Graeme McDowell continued to gain steam .
This percentage dipped as low as 50 % in 2005 , but rebounded above 70 % in the seasons leading up to 2013 -- even as the perception that Europe was losing stars like Rory McIlroy , Martin Kaymer and Graeme McDowell continued to gain steam .