Real GDP.
Nigeria ranks 3rd in African's GDP and 37th in the world GDP. The highest economy and GDP in West Africa. http://en.wikipedia.org/wiki/List_of_African_countries_by_GDP_PPP Also Nigeria is one of the fastest growing economy in the world. http://en.wikipedia.org/wiki/Nigeria http://en.wikipedia.org/wiki/Regional_power
It is measured by Real GDP, the reason is because you cant just say GDP. GDP consists of nominal and real GDP, nominal GDP does not include prices at different constants in other words it just uses one base price for all the different times, whereas real GDP consists of varying price levels at different times. Real GDP
South Africa has a GDP of $408.2 billion(2011) US dollars according to the world bank.
The Per Capita is measured by the average income. Each year it is measured.
GDP - Gross Domestic Product GDP is a measure of the wealth of a country. It is worked out by dividing the total of the money by what a country gains from the production of goods and services by it's population. GDP is measured in US Dollars - $
South Africa's GDP (purchasing power parity) was $495.1 billion in 2009, for a per capita GDP of $10,100.00 in 2009. (CIA).
Real Gross Domestic Product also known as Nominal GDP.
An expansion
The advantages of using GDP include the measurement of total domestic consumption. Total domestic investment expenditures and net exports are also clearly measured with the use of GDP.
Measured by GDP (gross domestic product), in 2008, Luxembourg was the richest country in the world, with a GDP of around $80,000. Qatar was the second richest with a GDP of $75,000.
The Gross Domestic Product (GDP) in South Africa was worth 132.878 billion US dollars in 2000, according to a report published by the World Bank.