SIPRI counts the deliveries of large conventional weapons, each of which is assigned a value according to cost, strategic importance and other criteria.
SIPRI统计的是大型传统武器的交付量，每件武器都根据价格、战略重要性和其它标准被赋予一个值。
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The United States, Russia, Germany, France and the United Kingdom account for 80 percent of major conventional weapons exports from 2003 through 2007, SIPRI reported.