Sales of violent video games have significantly increased while violent juvenile crime rates have significantly decreased. Total US sales of video game hardware and software increased 204% from 1994 to 2014, reaching $13.1 billion in 2014, while violent crimes decreased 37% and murders by juveniles acting alone fell 76% in that same period. [133][134][135][136][82][83] The juvenile Violent Crime Index arrest rate in 2012 was 38% below 1980 levels and 63% below 1994, the peak year. [83] The number of high school students who had been in at least one physical fight decreased from 43% in 1991 to 25% in 2013, and student reports of criminal victimization at school dropped by more than half from 1995 to 2011. [107][106] An Aug. 2014 peer-reviewed study found that: "Annual trends in video game sales for the past 33 years were unrelated to violent crime... Monthly sales of video games were related to concurrent decreases in aggravated assaults." [84]