U.S. public bioscience firms by revenue size class

This table shows the number of U.S. bioscience public firms in various revenue size classes in 2009. That year, 15 such firms belonged to the revenue size class of over 10 billion U.S. dollars.本表展示了2009年美国生物科学领域上市公司在不同收入规模类别中的数量。当年，共有15家此类公司隶属于收入规模超过100亿美元的类别。