据联合国有关部门统计，目前全世界有 860万人吸食海洛因。在中国，公安部门登记在册的吸毒人数， 1991年为 14.8万， 1995年为 52万， 1999年为 68.1万。现有吸毒人数占全国总人口的 0.54‰，且数字仍在继续增多中。吸毒人数中，吸食海洛因的占 71.5％，年龄在 35岁以下的占 According to the statistics of relevant UN departments, there are currently 8.6 million people taking heroin in the world. In China, the number of drug abusers registered in the public security department was 148,000 in 1991, 520,000 in 1995 and 681,000 in 1999. The current number of drug abusers accounts for 0.54% of the total population in the country, and the number continues to increase. Drug abusers accounted for 71.5% of heroin abuse, accounting for 35 years of age or younger