On 30 Dec. 2009, At the start of this Orkut  thread "http://www.tinyurl.com/23nlu6a"  an indication of steep fall in 2010 was given due to a war or war like situation in the world. All market observers have witnessed that a war like situation between North and South Korea affected the market negatively
 

 
News Ref::          http://www.onaired.com/2010/11/korea-war-north-korea-army-attacked-on-south-korea-with-200- artillery-shells/
                           http://www.bloomberg.com/news/2010-12-04/north-korea-condemns-u-s-japan-south-korea-military-alliance.html                           
                           http://www.ibnlive.in.com/news/korea-crisis-ussouth-korea-war-games-begin/136008-2.html