美国联邦存款保险公司：第一季度，美国银行业利润增长5.8%至706亿美元。银行利润增长主要得益于非利息收入的增加。

Core Insights - The core viewpoint of the article is that the U.S. banking industry experienced a profit increase of 5.8% in the first quarter, reaching $70.6 billion, primarily driven by an increase in non-interest income [1] Summary by Categories Profit Growth - The U.S. banking industry's profits rose by 5.8% to $70.6 billion in the first quarter [1] Revenue Sources - The growth in bank profits was mainly attributed to an increase in non-interest income [1]