 And then there is the all time money earners statistic, which tallies the bull riders in order of whom has earned the most money in their careers.Additionally, the success rate for an 8-second ride was 46 percent in 1995, had dropped to 26 percent by 2012, then climbed roughly 3 percent to about 29 percent for 2017 and 2018.This lower modern rate has been attributed to the selective breeding of bulls.