89 players of the mlb.
In track and field in America - 40 to 50% of the athletes In weight lifting, a competitor admitted to taking steroids and said it was okay because 80%-90% of the athletes he'd faced were using...
about 200
32%
there are many players in the mlb that use steroids. My guess would be 30-40.
you cant really know the # that do becaus it is illlegal
How to Test Athletes for Steroids
The Implications of Fan Pressure on Athletes
How Sports Ruling Bodies Can Regulate the Athletes
Athletes and Steroids