Operating system market share, (%) by version

This topic tracks the rise and fall of different versions of operating systems, for example Mac OS X 10.5 and Mac OS X 10.6, while two people may be both using Mac OS X one may have an older version and the other a newer. The figures are shown as a percentage and the other category represents all the other operating systems which had a smaller market share than the ones shown. The data is recorded by internet traffic through clients that access Netmarketshare's network of websites that use their service.