That shouldn’t be a surprise; Google’s been ahead of Apple three out of the past five. The exceptions were 2011 (the year Steve Jobs died) and 2012 (the year the New York Times rode Apple all the way to a Pulitzer).
Apple’s biggest month of 2013 was, naturally enough, September, when iOS 7 and a pair of new iPhones were released. For Google, according to Dow Jones, it was May, when the Moto X and the HTC One were announced.
Below: Apple’s year, month by month.