This was posted on Yahoo:
http://finance.yahoo.com/news/crazy-stat-shows-just-common-214811009.html
http://finance.yahoo.com/news/crazy-stat-shows-just-common-214811009.html
During this 16-year period, 12 Tour de France races were won by cyclists who were confirmed dopers. In addition, of the 81 different riders who finished in the top-10 of the Tour de France during this period, 65% have been caught doping, admitted to blood doping, or have strong associations to doping and are suspected cheaters.
More importantly for Lance Armstrong, during the 7-year window when he won every Tour de France (1999-2005), 87% of the top-10 finishers (61 of 70) were confirmed dopers or suspected of doping.