provide up to an additional year of study tuition-free. Study abroad Approximately 85 percent of all students study abroad at least once before graduating, making international study a hallmark of a Centre education. For the class of 2013, Centre ranked No. 1 in the nation among all colleges and universities for participation in study abroad. As part of its effort to promote global citizenship, in 2010 Centre began providing passports free of charge for all entering students who do not already possess one. The college maintains permanent residential programs operated by Centre faculty in England (London), France (Strasbourg, across the Rhine River from Germany), and Mexico (Mérida, located on the Yucatán Peninsula). Additionally, the college maintains well-utilized exchange programs in China (with Tongji University), Japan (with Yamaguchi Prefectural University), Scotland (University of Glasgow), and Northern Ireland (with Queen's University Belfast). Students also study abroad during the fall term at the University of Reading in England. Supplementing the semester and yearlong programs, Centre offers a wide variety of study abroad options during the three-week Centre Term held in January. These options have included Bali, Barbados, Cameroon, Costa Rica, Greece, India, Israel, Peru, New Zealand, and Vietnam. Student life About 96 percent of Centre's students live on campus and participate in athletics, academic organizations, student government, and volunteer work. There are about 100 clubs, societies, teams and other formal and informal groups and more than 2,000 campus events each year. In 2016 the ethnic diversity of the student body was 3.3% Asian or Asian American, 4.6% Black or African American, 2.3% Hispanic or Latino, 3% Two or more races, and 80% White. Greek life Centre has an active Greek life, with the following chapters: Beta Theta Pi (fraternity; chapter founded 1848) Delta Kappa Epsilon (fraternity; chapter founded 1854) Phi Delta Theta (fraternity; chapter founded 1850) Phi Kappa Tau (fraternity; chapter founded 1914; inactive 1933–1948) Sigma Alpha Epsilon (fraternity; chapter founded 1882) Sigma Chi (fraternity; chapter founded 1876) Alpha Delta Pi (sorority; chapter founded 2000) Delta Delta Delta (sorority; chapter founded 1980) Kappa Alpha Theta (sorority; chapter founded 1980) Kappa Delta (sorority; chapter founded 2016) Kappa Kappa Gamma (sorority; chapter founded 1980) Academic and leadership honorary societies Centre has a variety of academic and leadership honorary societies including: Beta Beta Beta – biology Gamma Sigma Alpha – Greek scholarship Omicron Delta Epsilon – economics Omicron Delta Kappa – leadership Order of Omega –