全国地产经纪商协会(NationalAssociationofRealtors)7月份成屋签约销售指数从6月份的94.6升至97.6。
The National Association of Realtors ' pending home sales index rose to 97.6 in July from 94.6 in June .
与2007年3月相比,美国成屋签约销售指数下降了21.7%。
Compared with March 2007 , US pending home sales are down 21.7 per cent .