International Data Corporation (IDC) released it’s quarterly report on worldwide tablet shipments Tuesday. The report states that the data tracking agency has lowered its expected forecast for growth in the tablet sector, which includes Android, iOS, and Windows tablets.

According to the latest forecast from the International Data Corporation (IDC) Worldwide Quarterly Tablet Tracker, worldwide tablet shipments are expected to reach 221.3 million units in 2013, down slightly from a previous forecast of 227.4 million but still 53.5% above 2012 levels. Shipment growth is forecast to slow to 22.2% year over year in 2014 to a total of 270.5 million units. By 2017, annual market growth will slow to single-digit percentages and shipments will peak at 386.3 million units, down from the previous forecast of 407 million units.