China still needs investment growth of around 20 pct a year because of the infrastructure requirements at the country's current stage of development, Forbes reported, citing the China Securities Journal.'We still need to maintain investment growth at a certain level. (Annual) investment growth of around 20 pct is desirable,' Forbes quoted Fan Gang, the newly appointed non-government member of the monetary policy committee under the People's Bank of China as saying. Fan said that infrastructure investment takes up around 30 pct of total investment. Fan said that a lot of investment, including those made in the property sector, is laying the foundation for more consumption down the road, but noted that the low income status of around 80 pct of the labor force means that any policies designed to boost consumption are unlikely to work in the short term.