New data collected by the National Science Foundation (NSF) have resulted in an upward revision in the previously published 2011 U.S. research and development (R&D) performance total, and further expansion of U.S. R&D performance is indicated for 2012.
These new data put U.S. R&D expenditures at $428.2 billion in 2011, an increase of $20.5 billion over 2010. The preliminary estimate of the 2012 U.S. total for R&D is $452.6 billion.
To read the original article: NSF study details recent US research and development growth | ScienceBlog.com