For the last decade, violence and crime decreased significantly across the Nation and in California. After declining by 49.7 percent from 1991 to 1999, California's major crime rate increased by 3.7 percent in 2001. Homicide (1 percent of violent crimes) increased by 5 percent; forcible rape (4.7 percent of violent crimes) did not change; robbery (30.1 percent of violent crimes) increased by 4.2 percent; and aggravated assault (64.2 percent of violent crimes) decreased by 3.1 percent. Overall, the rate for violent crimes decreased by 0.8 percent from 2000 to 2001. The rate for property crimes increased by 6 percent from 2000 to 2001, with burglary (53.3 percent of property crimes) increasing by 2.6 percent and motor vehicle theft (46.7 percent of property crimes) increasing by 10.2 percent. Despite the increases, however, the crime rate remains at a low level not seen since the 1960's. The 2001 total arrest rate of 5,311.9 per 100,000 population at risk reached the lowest level for which data are available. From 2000 to 2001, there was a slight increase in total felony arrests. In 2001, 66.8 percent of adult felony arrests resulted in a conviction. Since 1996, the rate of adults under State supervision has increased 8.6 percent, and the rate of adults under local supervision increased 7.6 percent.