Quoted from http://www.yawningbread.org/arch_2007/yax-824.htm :
"351 people earn S$228 million. That's an average of S$650,000 each. Meanwhile, 64,000 people earn S$4.7 billion minus S$228 million. That's an average of S$70,000 each, about a tenth of the average for the top 351 people."