Note that these figures are based on the one million most visited web sites (e.g. 0.27% of the total web sites according to figures of December 2011), according to Alexa.com, and language is identified using only the home page of the sites in most cases. As a consequence, the figures show a significantly higher percentage for many languages (especially for English) as compared to the figures for all websites. The figures for all websites are unknown, but some sources estimate below 50% for English - see for instance Towards a multilingual cyberspace.
The number of non-English pages is rapidly expanding. The use of English online increased by around 281% from 2001 to 2011, however this is far less than Spanish (743%), Chinese (1,277%), Russian (1,826%) or Arabic (2,501%) over the same period.