Well I don't know the exact sense of your question. But the facts suggest that "Somalia" in Africa is the most corrupt country in the world followed by "Myanmar" in Asia.
Other than that South Asian countries like India, Pakistan and Sri Lanka tend to obtain lower scores as compared to European nations like Britain, France and Germany.
Asian countries like Japan, South Korea, Hong Kong and Singapore are very less corrupt compared to China, North Korea and Russia in North-east Asia.
African countries are more corrupt due to lack of formidable governance, tribal warfare and various other issues. Clear exceptions are South Africa and North African nations.
Usually though Algeria, Egypt and various other North African countries are rated as more corrupt.
MORE THAN THAT THE PRESENCE OF FREEDOM OF EXPRESSION AND VARIOUS OTHER FACTORS CAN BE COUNTERBALANCING TO THE GRAVE EFFECTS OF CORRUPTION IN SOME COUNTRIES.
By saying that at least I can pull India out of the list about which I have knowledge. Because too much revolt against various corruption related issues forces the government to investigate and take more logical decisions.
I am sure this happens in other countries as well and this usually is not taken into consideration while measuring the corruption index.