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Amazon is among the world's highest-grossing online retailers, with $233 billion in net sales and $408 billion in estimated global gross merchandise volume in 2018. Online product and digital media content sales accounted for 53% of net revenue in 2018, followed by commissions, related fulfillment and shipping fees, and other third-party seller services (18%), Amazon Web Services' cloud compute, storage, database, and other offerings (11%), Prime membership fees and other subscription-based services (6%), product sales at Whole Foods and other physical store retail formats (7%), and advertising services and cobranded credit cards (4%). International segments constituted 32% of Amazon's non-AWS sales in 2018, led by Germany, the United Kingdom, and Japan.