Complex sentence: Africa, Eastern Europe, Central Asia, and Latin America have all experienced real wage growth of under 0.9 percent in 2013, whilst the developed countries of the OECD have experienced real wage growth of 0.2 percent in the same period.
Split into simpler sentences: Africa, Eastern Europe, Central Asia, and Latin America have all experienced real wage growth of under 0.9 percent in 2013. Whilst the developed countries of the OECD have experienced real wage growth of 0.2 percent in the same period.