According to a new report from online advertising network Chitika, smartphones and tablets now account for 20% of all Web traffic in the U.S. and Canada. Traditional PCs accounted for 80% of Web traffic, with smartphone traffic totaling 14.6% and tablets making up 5.6%, AllThingD reported. Chitika found that a whopping 95% of tablet Web traffic came from a version of Apple’s iPad, mainly the newest iPad, and 72% of smartphone traffic also belongs to Apple, compared to 26% for Android devices. The Cupertino-based company didn’t fare as well on the desktop side, which saw 85% of Web traffic from Windows machines compared to 13% from Macs. The report also noted that Windows Phone now accounts for a third as much traffic as BlackBerry phones, and while Microsoft’s mobile platform owns a smaller share of the market, the handsets’ larger displays may be responsible for the proportionally large share of Web browsing.