<Table> <Tr> <Td> 6% 12% 18% 24% </Td> <Td> 36% 48% 60% 60% </Td> <Td> 66% 78% 86% No data </Td> </Tr> </Table> <Tr> <Td> 6% 12% 18% 24% </Td> <Td> 36% 48% 60% 60% </Td> <Td> 66% 78% 86% No data </Td> </Tr> <P> Globally, as of 2009, approximately 60% of those who are married and able to have children use birth control . How frequently different methods are used varies widely between countries . The most common method in the developed world is condoms and oral contraceptives, while in Africa it is oral contraceptives and in Latin America and Asia it is sterilization . In the developing world overall, 35% of birth control is via female sterilization, 30% is via IUDs, 12% is via oral contraceptives, 11% is via condoms, and 4% is via male sterilization . </P> <P> While less used in the developed countries than the developing world, the number of women using IUDs as of 2007 was more than 180 million . Avoiding sex when fertile is used by about 3.6% of women of childbearing age, with usage as high as 20% in areas of South America . As of 2005, 12% of couples are using a male form of birth control (either condoms or a vasectomy) with higher rates in the developed world . Usage of male forms of birth control has decreased between 1985 and 2009 . Contraceptive use among women in Sub-Saharan Africa has risen from about 5% in 1991 to about 30% in 2006 . </P>

When did the birth control pill get invented