In the LDC group, value added per worker is higher in Asian LDCs (S338) than in African LDCs (3276) (see chart 20C). However, during the period 1993-2011, what is particularly striking is the rapid rise in agricultural labour productivity in Asian LDCs (up around 79 per cent). In African LDCs, by contrast, productivity levels have been stagnant (up only 1 per cent), and in island LDCs these levels actually declined by 5 per cent over the same period. Labour per worker data are based on constant 2005 dollars.