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在1970～1980年之间,美国有287,322人自杀身亡,平均每20分钟就死一人.1970年的自杀率为11.6/10万,1977年上升为13.1/10万,1980年又下降为11.9/10万,但在15～24岁年龄组中,男女性自杀率持续升高,男性升高50%,大都为白人青年,这就使1970年平均自杀年龄47.2岁下降为1980年的39.9岁.仅1980年,美国就有27,000人自杀,使自杀成为青年死因的第三位和总死因的第十位.据美
Between 1970 and 1980, 287,322 people committed suicide in the United States, killing an average of every 20 minutes. The suicide rate was 11.6 / 100,000 in 1970, 13.1 / 100,000 in 1977 and 11.9 / However, in the age group of 15-24, the suicide rate of men and women has been rising continuously. Men are 50% more likely to be white youths. This has led to a decrease in the average suicide age of 47.2 years in 1970 to 39.9 in 1980. In 1980 alone, 27,000 people committed suicide in the United States, making suicide the third highest cause of death among young people and the tenth in total causes of death.