Windows 7 46.64%
Windows XP 31.22%
Windows 8 6.66%
Windows Vista 3.57%
Windows 8.1 2.64%
Mac OS X 10.9 2.42%
Mac OS X 10.8 1.85%
Linux 1.56%
Mac OS X 10.6 1.53%
Mac OS X 10.7 1.34%
Mac OS X 10.5 0.32%
Windows NT 0.09%
Mac OS X 10.4 0.08%
Windows 2000 0.03%
Mac OS X (no version reported) 0.01%
Windows 98 0.00%
FreeBSD 0.00%
www.netmarketshare.com/operating-system-market-share.aspx?qprid=10&qpcustomd=0

Windows 8.1がMac OS X 10.9もあっさり抜く