Source of variance Sum of squares Variance components Percentage variation (%)
Among continents 4087677.400 5560.54718 24.72825*
Among countries within continents 3672984.746 5373.26137 23.89538*
Among individuals within countries 5393862.265 4986.70023 22.17630*
Within individuals 2431033.500 6566.10712 29.20007*
Total 15585557.911 22489.08438 100