For the first time Amazon has revealed its numbers for AWS.

In its latest financial earnings report, Amazon said AWS grew 49 percent in 2014, pulling in $4.6 billion in revenue. After reaching $1.57 billion in the first quarter of this year, AWS is on track for $6.23 billion in sales by year’s end, the company said. Though its cloud business still accounted for only 7 percent of the company’s overall quarterly revenue of $22.72 billion, AWS is growing at a much faster rate than the rest of Amazon (AWS grew 49 percent, while the company’s core North American business grew 22 percent). And contrary to what the company has indicated in the past, its margins are significantly higher with AWS.

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