In addition, the 2002 survey also determined how easy it was for school aged children to obtain steroids. The survey indicated 22% of eighth graders, % of tenth graders, and % of twelfth graders surveyed in 2002 reported that steroids were "fairly easy" or "very easy" to obtain. More than 57% of twelfth graders surveyed in 2002 reported that using steroids was a "great risk." Also, another study indicated that steroids are used predominately by males. The survey determined the annual prevalence rates were two to four times as high among males as among females.