Aggregated material use, historic and projected to 2020

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012
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The median value identifies the middle of a distribution, i.e



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50 % of data points lie below and 50 % lie above the median. The median is more useful than the average (mean) when differences between individual countries under comparison are very significant, which is the case here.

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