MIT was elected to the Association of American Universities in 1934 and remains a research university with a very high level of research activity; research expenditures totaled $718.2 million in 2009. The federal government was the largest source of sponsored research, with the Department of Health and Human Services granting $255.9 million, United States Department of Defense $97.5 million, United States Department of Energy $65.8 million, National Science Foundation $61.4 million, and NASA $27.4 million. MIT employs approximately 1300 researchers in addition to faculty. In 2011, MIT faculty and researchers disclosed 632 inventions, were issued 153 patents, earned $85.4 million in cash income, and received $69.6 million in royalties. Through programs like the Deshpande Center, MIT faculty leverage their research and discoveries into multi-million-dollar commercial ventures.. How many more million dollars did the Department of Health and Human service give out than the amount that MIT spent over the total amount given out in government grants?