The survey excludes Federal courts and State or local courts that do not adjudicate adult felony cases. The tables in this publication provide data on the number of felony offenders of convictions. The report also covers comparisons to felony sentences in Federal courts, using data from the Federal Justice Statistics Program (FJSP). The 2006 NJRP was based on a sample of State courts in 300 counties selected to be nationally representative. The survey included only offenses that State penal codes defined as felonies. Felonies are widely defined as crimes with the potential of being punished by more than 1 year in prison. NJRP surveys have been conducted every 2 years since 1986. Highlights include the following: 1) in 2006 an estimated 69 percent of all persons convicted of a felony in state courts were sentenced to a period of confinement-41 percent to State prison and 28 percent to local jails; 2) State prison sentences averaged 4 years and 11 months in 2006; 3) men (83 percent) accounted for a larger percentage of persons convicted of a felony, compared to their percentage (49 percent) of the adult population; and 4) most (94 percent) felony offenders sentenced in 2006 pleaded guilty.