A normative definition views crime as deviant behavior that violates prevailing norms-cultural standards prescribing how humans ought to behave normally. This approach considers the complex realities surrounding the concept of crime and seeks to understand how changing social, political, psychological, and economic conditions may affect the current definitions of crime and the form of the legal, law enforcement, and penal responses made by society. In the United States since 1930, the Federal Bureau of Investigation (FBI) has tabulated Uniform Crime Reports (UCR) annually from crime data submitted by law enforcement agencies across the United States. Officials compile this data at the city, county, and state levels into the UCR. United States overall crime rate is displayed in two indices. The violent crime index comprises forcible rape, robbery, murder and assault. The property crime index consists of burglary, larceny-theft, and motor vehicle theft. The crime rate is measured by the number of crimes being reported per 100,000 people.