Query: What was the rate of decline that Dell experienced in PC shipments?
Context: Dell's 3.6% growth paled in comparison to HP's 15% growth during the same period. The problem got worse in the fourth quarter, when Gartner estimated that Dell PC shipments declined 8.9% (versus HP's 23.9% growth). As a result, at the end of 2006 Dell's overall PC market-share stood at 13.9% (versus HP's 17.4%).