MySql: showing the average of products added in every section, daily wise for any month

I want to show the average of products added in every section(category), daily wise for any month can you help me in that ?

Section are cars,villas and general

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Date             Cars    Villas   General
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01-01-2011       20%     10%      70%
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02-01-201开发者_如何学Python1       31%     9%       60%
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31-01-2011       70%     19%       11%
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Go to the mysql docs and look up the GROUP_BY and AVG functions. :)