While such projections are open to dispute, they suggest that even if MDG target 11 is achieved, it may meet only 11 per cent of existing needs and only 7 per cent of future estimated needs by 2020.

• 然而这些预测都是敞开争论的，它们表明即使千年发展目标中的第11条能实现，那也只能满足现有需求的11%25和所预测2020年需求的7%25。