2008 http://keirin.jp/pc/dfw/portal/guest/news/2007khn/12/news20071204_02.html 2009 http://keirin.jp/pc/dfw/portal/guest/news/2008khn/12/news20081222_02.html 2010 http://keirin.jp/pc/dfw/portal/guest/news/2009khn/12/news20091209_02.html 20…