Despite pleas for clemency from human rights groups, Singapore has executed a Nigerian man and another stateless man from Africa. One was arrested at Changi airport in Singapore in 2004, carrying almost a million dollars worth of heroin whilst the other man was convicted as the intended recipient of the drugs. Singapore is believed to have one of the world’s highest rates of execution per capita. The People’s Republic of China performed more than 3400 executions in 2004, amounting to more than 90% of executions worldwide. Texas conducts more executions than any of the other U.S. states that still permit capital punishment, with 370 executions between 1976 and 2006. Singapore has the highest execution rate relative to its populations, with 70 hangings for a population of about 4 million.