During a given interval a nation''s overall productivity grows at a compounded rate of 2%. Its population growth rate and degree of labor-force participation do not change over this time span. The nation accumulates new capital at a compounded rate of growth of 1%, and the coefficient governing the proportionate increase in real GDP production in response to a proportionate rise in the amount of capital is equal to 0.3. What is the compound growth rate of real GDP at this time?