According to the School Crime Supplement (SCS) 22 percent of students ages 12–18 have been bullied at school, an amount lower than years past.

SCS says that bullying amounts were 28 percent each in 2005, 2009, and 2011 and 32 percent in 2007.

Similarly, lower percentages of students reporting being bullied in 2013 were observed across some student characteristics. For example, in 2013 about 24 percent of female students reported being bullied at school, compared with 29 to 33 percent in prior survey years. The pattern for males was similar. The percentage of students who reported being bullied in 2013 was also lower than the percentages in all prior survey years for White and Black students. For Hispanic and Asian students, the percentage of students who reported being bullied in 2013 was lower than the percentages in both 2007 and 2009.

In 2013, a higher percentage of females than of males ages 12–18 reported being bullied at school during the school year (24 vs. 19 percent). A higher percentage of White students (24 percent) than of Hispanic students (19 percent) and Asian students (9 percent) reported being bullied at school. In addition, higher percentages of Black students (20 percent) and Hispanic students than of Asian students reported being bullied at school. Higher percentages of students in grades 6 through 11 than of students in grade 12 reported being bullied at school during the school year. In 2013, about 14 percent of 12th-graders reported being bullied at school, compared with 28 percent of 6th-graders, 26 percent of 7th-graders, 22 percent of 8th-graders, 23 percent of 9th-graders, 19 percent of 10th-graders, and 20 percent of 11th-graders.

Additional data from the 2013 School Crime Supplement are available in the Student Reports of Bullying and Cyberbullying: Results from the 2013 School Crime Supplement to the National Victimization Survey. Tables in this report contain further information on bullying-related topics such as frequency and types of bullying, cyber-bullying, and fear and avoidance behaviors at school.

Additional information on the definition of bullying, risk factors for bullying, and bullying prevention can be found on stopbullying.gov. 

http://nces.ed.gov/blogs/nces/post/measuring-student-safety-bullying-rates-at-school