What year did Chen Yin participate in the Olympics that were NOT held in London? 
Chen Yin (swimmer): Chen Yin (born 1986-03-29 in Qinhuangdao, Hebei) is a Chinese swimmer, who competed for Team China at the 2008 Summer Olympics and 2012 Summer Olympics, both times in the men's 200 m butterfly. 2012 Summer Olympics:  It took place in London and to a lesser extent across the United Kingdom from 25 July to 12 August 2012.
2008