paragraph_text: As of 2015[update], Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's largest economy in 2014. Also, the debt-to-GDP ratio is only 11 percent, which is 8 percent below the 2012 ratio. Nigeria is considered to be an emerging market by the World Bank; It has been identified as a regional power on the African continent, a middle power in international affairs, and has also been identified as an emerging global power. Nigeria is a member of the MINT group of countries, which are widely seen as the globe's next "BRIC-like" economies. It is also listed among the "Next Eleven" economies set to become among the biggest in the world. Nigeria is a founding member of the Commonwealth of Nations, the African Union, OPEC, and the United Nations amongst other international organisations.

paragraph_text: 2017 Rank Country Nominal GDP ($billions) Nominal GDP per capita (US $) Notes Nigeria 376.284 1,994.235 South Africa 349.299 6,179.870 Egypt 237.037 2,500.772 Algeria 178.287 4,292.272 Angola 124.209 4,407.657 6 Sudan 119.00 1,428.000 7 Morocco 109.824 3,151.145 8 Ethiopia 80.874 872.840 9 Kenya 79.511 1,701.550 10 Tanzania 51.725 1,033.567 11 Ghana 47.032 1,663.190 12 Democratic Republic of the Congo 41.441 478.237 13 Ivory Coast 40.360 1,616.981 14 Tunisia 40.275 3,496.286 15 Cameroon 34.006 1,400.743 16 Libya 31.331 4,858.672 17 Uganda 26.349 699.410 18 Zambia 25.504 1,479.542 19 Zimbabwe 17.491 1,175.723 20 Botswana 17.168 7,876.997 21 Senegal 16.463 1,038.094 22 Mali 15.318 810.771 23 Gabon 15.206 7,971.589 24 Namibia 12.687 5,413.508 25 Mozambique 12.681 429.296 26 Burkina Faso 12.569 663.806 27 Mauritius 12.428 9,794.102 28 Madagascar 11.463 447.558 29 Equatorial Guinea 10.725 12,726.956 30 Chad 9.872 810.163 31 Guinea 9.721 749.463 32 Benin 9.238 830.404 33 Rwanda 9.137 771.702 34 Congo 8.513 1,958.174 35 Niger 8.253 439.997 36 Somalia 7.382 547.32 37 Malawi 6.206 323.740 38 Eritrea 5.813 979.692 39 Mauritania 5.116 1,317.938 40 Togo 4.767 611.133 41 Swaziland 4.491 3,914.821 42 Sierra Leone 3.641 491.448 43 Burundi 3.396 312.463 44 Liberia 3.285 729.292 45 South Sudan 2.870 228.034 46 Lesotho 2.768 1,425.310 47 Djibouti 2.029 1,988.765 48 Central African Republic 1.928 386.806 49 Cape Verde 1.741 3,237.597 50 Seychelles 1.482 15,685.955 51 Guinea - Bissau 1.350 794.107 52 The Gambia 1.009 480.040 53 Comoros 0.652 787.831 54 São Tomé and Príncipe 0.379 1,785.280 -- Total 2,191.104

paragraph_text: HIV originated in Africa, and spread to the United States via Haiti between 1966 and 1972. AIDS is currently a pandemic, with infection rates as high as 25% in southern and eastern Africa. In 2006, the HIV prevalence rate among pregnant women in South Africa was 29.1%. Effective education about safer sexual practices and bloodborne infection precautions training have helped to slow down infection rates in several African countries sponsoring national education programs. Infection rates are rising again in Asia and the Americas. The AIDS death toll in Africa may reach 90–100 million by 2025.

paragraph_text: After an initial rebound from the 2009 world economic crisis, Africa’s economy was undermined in the year 2011 by the Arab uprisings. The continent’s growth fell back from 5% in 2010 to 3.4% in 2011. With the recovery of North African economies and sustained improvement in other regions, growth across the continent is expected to accelerate to 4.5% in 2012 and 4.8% in 2013. Short-term problems for the world economy remain as Europe confronts its debt crisis. Commodity prices—crucial for Africa—have declined from their peak due to weaker demand and increased supply, and some could fall further. But prices are expected to remain at levels favourable for African exporter.

paragraph_text: GM cotton acreage in India grew at a rapid rate, increasing from 50,000 hectares in 2002 to 10.6 million hectares in 2011. The total cotton area in India was 12.1 million hectares in 2011, so GM cotton was grown on 88% of the cotton area. This made India the country with the largest area of GM cotton in the world. A long-term study on the economic impacts of Bt cotton in India, published in the Journal PNAS in 2012, showed that Bt cotton has increased yields, profits, and living standards of smallholder farmers. The U.S. GM cotton crop was 4.0 million hectares in 2011 the second largest area in the world, the Chinese GM cotton crop was third largest by area with 3.9 million hectares and Pakistan had the fourth largest GM cotton crop area of 2.6 million hectares in 2011. The initial introduction of GM cotton proved to be a success in Australia – the yields were equivalent to the non-transgenic varieties and the crop used much less pesticide to produce (85% reduction). The subsequent introduction of a second variety of GM cotton led to increases in GM cotton production until 95% of the Australian cotton crop was GM in 2009 making Australia the country with the fifth largest GM cotton crop in the world. Other GM cotton growing countries in 2011 were Argentina, Myanmar, Burkina Faso, Brazil, Mexico, Colombia, South Africa and Costa Rica.

paragraph_text: Mali (; ), officially the Republic of Mali (), is a landlocked country in West Africa. Mali is the eighth-largest country in Africa, with an area of just over . The population of Mali is /1e6 round 1 million. 67% of its population was estimated to be under the age of 25 in 2017. Its capital is Bamako. The sovereign state of Mali consists of eight regions and its borders on the north reach deep into the middle of the Sahara Desert, while the country's southern part, where the majority of inhabitants live, features the Niger and Senegal rivers. The country's economy centers on agriculture and mining. Some of Mali's prominent natural resources include gold, being the third largest producer of gold in the African continent, and salt.

paragraph_text: Cascade AIDS Project (CAP) is a nonprofit organization based in Portland, Oregon, in the United States. Its mission is to prevent HIV infections, to "support and empower" people affected and by HIV/AIDS, and to eliminate stigma associated with the disease. Founded in 1983 and incorporated two years later, CAP is the "oldest and largest community-based provider of HIV services, housing, education and advocacy" in Oregon and Southwest Washington.

paragraph_text: South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded on the south by 2,798 kilometres (1,739 mi) of coastline of Southern Africa stretching along the South Atlantic and Indian Oceans; on the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and on the east and northeast by Mozambique and Swaziland; and surrounds the kingdom of Lesotho. South Africa is the largest country in Southern Africa and the 25th - largest country in the world by land area and, with close to 56 million people, is the world's 24th-most populous nation. It is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different African languages, nine of which have official status. The remaining population consists of Africa's largest communities of African (black), European (white), Asian (Indian), and multiracial (coloured) ancestry.

paragraph_text: The HIV pandemic is most severe in Sub-Saharan Africa. Over 60% of all people living with HIV reside within the region. Adult HIV prevalence exceed 20% in Swaziland, Botswana, and Lesotho, while an additional six countries report adult HIV prevalence of at least 10%. In terms of raw HIV case numbers, South Africa, followed by Nigeria (3.2 million), and Philippines (2.1 million) by the end of 2013. While South Africa's large population of HIV - positive people is attributable to its high disease prevalence (17.3%, ranked highest in the world) and Nigeria is ranked 20th (3.7%), India's prevalence (0.3%) is comparable to Canada, the UK, and lower than the USA due to its large population (192 million).

paragraph_text: Elizabeth Mataka was the United Nations Special Envoy for HIV/AIDS in Africa, as appointed on May 21, 2007 by UN Secretary-General Ban Ki-moon, replacing Stephen Lewis. She served in this position till 13 July 2012. Mataka is a national of Botswana and a resident of Zambia. She served as the vice-chair of the board of the Global Fund to Fight AIDS, Tuberculosis and Malaria.

paragraph_text: BRICS is the acronym for an association of five major emerging national economies: Brazil, Russia, India, China and South Africa. Originally the first four were grouped as ``BRIC ''(or`` the BRICs''), before the induction of South Africa in 2010. The BRICS members are all leading developing or newly industrialized countries, but they are distinguished by their large, sometimes fast - growing economies and significant influence on regional affairs; all five are G - 20 members. Since 2009, the BRICS nations have met annually at formal summits. China hosted the 9th BRICS summit in Xiamen on September 3rd, 4th and 5th, 2017. The term does not include countries such as South Korea, Mexico and Turkey for which other acronyms and group associations were later created.

paragraph_text: Libya (; ; ), officially the State of Libya, is a country in the Maghreb region in North Africa, bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad to the south, Niger to the southwest, Algeria to the west, and Tunisia to the northwest. The sovereign state is made of three historical regions: Tripolitania, Fezzan and Cyrenaica. With an area of almost , Libya is the fourth largest country in Africa, and is the 16th largest country in the world. Libya has the 10th-largest proven oil reserves of any country in the world. The largest city and capital, Tripoli, is located in western Libya and contains over one million of Libya's six million people. The second-largest city is Benghazi, which is located in eastern Libya.

paragraph_text: The economy of India is an underdeveloped mixed economy. It is the world's seventh - largest economy by nominal GDP and the third - largest by purchasing power parity (PPP). The country ranks 141st in per capita GDP (nominal) with $1723 and 123rd in per capita GDP (PPP) with $6,616 as of 2016. After 1991 economic liberalisation, India achieved 6 - 7% average GDP growth annually. In FY 2015 India's economy became the world's fastest growing major economy surpassing China. The long - term growth prospective of the Indian economy is positive due to its young population, corresponding low dependency ratio, healthy savings and investment rates, and increasing integration into the global economy.

paragraph_text: In March 2001, 40 multi-national pharmaceutical companies brought litigation against South Africa for its Medicines Act, which allowed the generic production of antiretroviral drugs (ARVs) for treating HIV, despite the fact that these drugs were on-patent. HIV was and is an epidemic in South Africa, and ARVs at the time cost between 10,000 and 15,000 USD per patient per year. This was unaffordable for most South African citizens, and so the South African government committed to providing ARVs at prices closer to what people could afford. To do so, they would need to ignore the patents on drugs and produce generics within the country (using a compulsory license), or import them from abroad. After international protest in favour of public health rights (including the collection of 250,000 signatures by MSF), the governments of several developed countries (including The Netherlands, Germany, France, and later the US) backed the South African government, and the case was dropped in April of that year.

paragraph_text: HIV/AIDS rate in Nigeria is much lower compared to the other African nations such as Kenya or South Africa whose prevalence (percentage) rates are in the double digits. As of 2012[update], the HIV prevalence rate among adults ages 15–49 was just 3.1 percent. As of 2014[update], Life expectancy in Nigeria is 52.62 years on average according to CIA, and just over half the population have access to potable water and appropriate sanitation; As of 2010[update], the Infant mortality is 8.4 deaths per 1000 live births.

paragraph_text: Malawi (, or ; or [maláwi]), officially the Republic of Malawi, is a landlocked country in southeast Africa that was formerly known as Nyasaland. It is bordered by Zambia to the northwest, Tanzania to the northeast, and Mozambique on the east, south and west. Malawi spans over and has an estimated population of (as of July ). Lake Malawi takes up about a third of Malawi's area. Its capital is Lilongwe, which is also Malawi's largest city; the second largest is Blantyre, the third largest is Mzuzu and the fourth largest is its old capital Zomba. The name Malawi comes from the Maravi, an old name of the Nyanja people that inhabit the area. The country is also nicknamed ""The Warm Heart of Africa"" because of the friendliness of the people.

paragraph_text: Chad has several regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanian Savanna zone in the south. Lake Chad, after which the country is named, is the largest wetland in Chad and the second - largest in Africa. The capital N'Djamena is the largest city.

paragraph_text: On a total scale the region has approximately 34,700,201 inhabitants who are spread among 30,000 islands in the South Pacific bordered between Asia and the Americas. This region has a diverse mix of economies from the highly developed and globally competitive financial market of Australia to the much less developed economies that belong to many of its island neighbours. New Zealand is the only other developed country in the region, although the economy of Australia is by far the largest and most dominant economy in the region and one of the largest in the world.

paragraph_text: As a sovereign country (2016), Texas would be the 10th largest economy in the world by GDP (ahead of South Korea and Canada). Texas's household income was $48,259 in 2010 ranking 25th in the nation. The state debt in 2012 was calculated to be $121.7 billion, or $7,400 per taxpayer. Texas has the second largest population in the country after California.

paragraph_text: South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by 2,798 kilometres (1,739 mi) of coastline of Southern Africa stretching along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Swaziland (Eswatini); and it surrounds the kingdom of Lesotho. South Africa is the largest country in Southern Africa and the 25th - largest country in the world by land area and, with close to 56 million people, is the world's 24th-most populous nation. It is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different African languages, nine of which have official status. The remaining population consists of Africa's largest communities of European (white), Asian (Indian), and multiracial (Coloured) ancestry.

Question: How much of the country with the largest economy in Africa has HIV as of 2012?
Answer: 3.1 percent