Mac OS X, Safari and iPhone market share for Internet usage rose from April to May, according to the latest market share survey NetMarketShare (

According to the report, among operating systems, Mac OS X had 5.27% of the global market share in May, compared to 5.32% in April (that’s global market share; in the US it’s almost 10 %). Windows remains dominant with 91.28% as of April. That’s down from 91.46% in March. Apple’s highest percentage previously was 5.27% in October 2009.

When it comes to browsers, Safari had 4.77% in May compared to 4.72% in April, while Internet Explorer had 59.95% Firefox had 24.59% and Chrome had 7.05%. That compares to, respectively, April percentages of 60.65, 24.52 and 6.73%, for the browsers.

The iPhone’s market share also rose, according to Net Applications. The Apple device had 0.61% of the global market share in May compared to 0.53% in April. The iPod touch also had 0.12% of the mobile market share in May, compared to 0.11% in April.

NetMarketShares’ monthly surveys don’t measure market share in terms of computer systems sold. Instead they sample data from visitors to some 40,000 web sites operated by their clients.