In a recent blog article, SSTI reports the spending and intensity of U.S. research & development from 2006 to 2011. During this five year period, U.S. total R&D investment grew by 23.37 percent. California, in addition to ranking near the top of the list of R&D-focused states, leads in total R&D spending. In 2011, the state's spending reached $91.4 billion, accounting for more than one-fifth all U.S. research investment. Other high-ranking states include Massachusetts, Texas, Maryland, and New York.