Topping each of the sin categories were South Korea (lust), the US (gluttony), Mexico (greed), Iceland (sloth and pride), South Africa (wrath) and Australia (envy).
Of course, some question the research methods and the results. http://www.news.com.au/national/australia-ranked-world-number-one-for-sinning/story-e6frfkvr-1225824525361 -via Simply Left Behind
Anyway, they're just trying to sell a magazine, with an attention grabbing headline...and a friendly jab at the Aussies.