第五，非洲领导人正在认真遏制腐败行为所造成的非法资金流出，腐败行为多数发生在石油天然气领域，因此被掠夺的非洲国家财富每年约为500亿美元。
Fifth, African leaders are getting serious about curbing illicit financial outflows from corrupt practices that rob African countries of some $50 billion annually, much of it in the oil and gas sector.