顶部的图表显示的是两种类型的房屋销售量和1976年房屋销售速度的比较。
The top chart shows sales volumes of both types of homes, compared with the sales pace for each in 1976.
第二个图表反映出相同的数据，但是显示出在过去的每一个价格开始下降的时期，销售量需要多长时间从最高的水平下降。
The second chart reflects the same data, but shows how far sales fell from peak levels during each downturn in the past.
图表显示这个公司本年度销售量下降了。
The chart showed a decline in the company's sales during the year.
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