根據(jù)世界半導體貿(mào)易統(tǒng)計組織（World Semiconductor Trade Statistics organization , WSTS）的數(shù)字，2011年5月全球芯片銷售額為23.49億美元，同比2010年5月的銷售記錄下降了1.7％。 這個數(shù)字由WSTS在前一個月做了修正，這是全球芯片市場的第二個反彈月份，但銷售額仍小于上年同月。 WSTS在更新過數(shù)據(jù)表后，加入了5月份的數(shù)據(jù)，并對3，4月的數(shù)據(jù)做了修正。3月實際銷售額從28.34億美元減少到28.19億美元，4月份從23.52億美元減少到23.41億美元。的月實際銷售數(shù)字。因此從年均增長來看，2010年4月比2009年4月同比增長0.2%，而2011年4月則下跌了0.3％。 WSTS還發(fā)布了三個月的平均數(shù)據(jù)，采用了美國半導體產(chǎn)業(yè)協(xié)會（Semiconductor Industry Association, SIA）和歐洲半導體產(chǎn)業(yè)協(xié)會（European Semiconductor Industry Association, ESIA）公布的數(shù)字。這使得我們看到任何即定月份的平均銷售額同時，還可以對比前兩個月的平均銷售額。SIA和ESIA喜歡目前這種數(shù)據(jù)呈現(xiàn)的模式，因為它的圖形表現(xiàn)平滑，通常在季度開始處于波谷，季度結(jié)束時出現(xiàn)波峰。然而，平均數(shù)的做法也容易忽略了一些全球性或區(qū)域性的突發(fā)性銷售額急劇下降或上升。 如果不與去年做比較，5月實際芯片銷售額比4月份還是有0.4％增長的，4月份的銷售額為23.41億美元。 但是回顧過去十年WSTS的數(shù)據(jù)，我們會發(fā)現(xiàn)這一數(shù)字還是大大不如以前。從2001年到2010年，5月芯片市場的銷售額平均要比4月高4.2％。最差是在2001年，5月比4月下降了4.8％，最好是2006年的12.4％連續(xù)增長。 本文授權編譯自EE Times，版權所有，謝絕轉(zhuǎn)載 參考英文原文：WSTS: Chip market shrinking year-on-year, by Peter Clarke

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{pagination} WSTS: Chip market shrinking year-on-year Peter Clarke LONDON – Global chips sales in May were $23.49 billion, down by 1.7 percent on the sales recorded for May 2010, according to figures from the World Semiconductor Trade Statistics organization. And thanks to modifications made to the previous month's figures by WSTS, this is the second month on the bounce in which the global chip market has been smaller than it was in the same month in the year before. In its spreadsheet update including figures for May, WSTS reduced March actual sales figures to $28.19 billion from $28.34 billion and reduced April actual sales figures to $23.41 billion from $23.52 billion. As a result April 2011 sales are now shown to be down 0.3 percent on April 2010 whereas before they showed an annual increase of 0.2 percent. WSTS also produces three-month-average figures which are published by the Semiconductor Industry Association and the European Semiconductor Industry Association. This makes the sales of any given month the average of the sales for that month and the previous two months. The SIA and ESIA prefer to present this data as it smoothes out the actual data that usually show troughs at the beginnings of the quarters and peaks at the ends of the quarters. However, averaging also masks the impact of sharp falls or jumps in any one month's global or regional chip sales. On a sequential basis May actual chips sales were up by 0.4 percent on the $23.41 billion sales recorded for April. This is considerably below most of the results provided by the previous ten years WSTS data. From 2001 to 2010 the May actual chip market has, on average, been 4.2 percent higher than that of April. The worst case was a 4.8 percent sequential fall in 2001 and the best case a 12.4 percent sequential spike in growth in 2006.