DEATH PENALTY STATISTICS 2006 / Amnesty International USA, April 2007
http://www.amnestyusa.org/document.php?lang=e&id=ENGACT500122007
"This document is a compilation of the annual death penalty statistics for 2006. It includes information under the following headings: Death Sentences and Executions in 2006 (AI Index: ACT 50/004/2007), Facts and Figures on the Death Penalty -1 January 2007 (AI Index: ACT 50/002/2007) List of Abolitionist and Retentionist Countries -1 January 2007 (AI Index: ACT 50/001/2007)."