WASHINGTON – Just four states carried out more than three-fourths of the executions in the United States this year, while another 23 states have not put an inmate to death in 10 years, an anti-capital punishment group reports.

The Death Penalty Information Center says in its annual report that Texas led the nation, as it does every year, with 15 executions. Arizona, Mississippi and Oklahoma had 6 each. Together, the four states accounted for 33 of the 43 executions in the United States in 2012.

The report also says that a handful of states were responsible for nearly two-thirds of death sentences imposed in 2012.