Coffee beans are seen in a bag at a branch of Nairobi Java House in Nairobi, January 21, 2012. Kenya's rich and new middle classes have a growing taste for coffee and ice cream. That's just one sign that African states such as Kenya are changing. Even as rich countries face slowdown, sub-Saharan African economies are expected to post nearly 6 percent average growth in 2012, according to the IMF. A study by the International Finance Corporation, part of the World Bank, has pointed to the potential of the continent's more than 1 billion people, millions of whom have moved out of subsistence agriculture and into urban jobs over the past decade. Picture taken January 21, 2012. To match Insight AFRICA/SPENDERS-INFLATION REUTERS/Noor Khamis (KENYA - Tags: BUSINESS FOOD SOCIETY)