Capital punishment refers to a sentence of death imposed on a person by courts as punishment for an offense. At some time capital punishment was used as a criminal sanction by all countries; however, most countries have since abolished the use of capital punishment. Even so, four of the most populous countries in the world continue to execute people, i.e. the People's Republic of China, India, the United States, and Indonesia. It is noted that, while India and Indonesia have capital punishment statutes, people in these countries are seldom sentenced to death or executed. In 2008 at least 2,390 people were executed in 25 countries worldwide, with China, Iran, Saudi Arabia, the United States, Pakistan, and Iraq being responsible for 95% of the executions.