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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.
in your garden or park by piling up some logs in a secluded corner. These will provide shelter for hedgehogs, frogs and toads. If you half-bury the bottom logs in the soil, you will also encourage stag beetles as they are fond of rotten wood. A pile of stones will also provide shelter to a range of insects and spiders.
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