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Summary
DescriptionUnicode Web growth.svg
English: Shows the usage of the main encodings on the web from 2001 to 2012 as recorded by Google
The "Unicode" line is actually UTF-8, as per the original source. Other Unicode encodings such as GB2312 have been added to "other". It is unclear why these modifications were done, they should be reverted.
Note that the ASCII only figure reflects web pages with any declared header if they only include ASCII characters. Since UTF-8 is the default character set from HTML5, its current figure is probably much higher. The trend is confirmed by more recent published statistics which aren't compatible.
West European includes ISO-8859-1 and Windows 1252. Others includes Chinese, Korean, Cyrillic, Eastern European, Arabic etc.
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