Apple Stores are often busy and with the release of new iPhones and iPads, Apple’s retail locations become bombarded with waves of excited customers. According to Needham & Company analyst Charlie Wolf, the launch of the iPhone 4S sent Apple Store sales to record heights during the holiday quarter. In the fourth quarter of 2011, revenue per store reached $17.08 million, a 42.6% increase over the same quarter in 2010. The average number of visitors per store was up 15.3% annually and sales per square foot reached $2,033 for the quarter — by comparison, the company’s nearest retail rival Tiffany & Co. saw sales of $2,974 per square foot last quarter, Fortune noted. Apple currently has 361 retail locations with 40 more planned for 2012, 30 of which will open overseas. The company currently has five locations in China and is looking to increase that number to 25 within the next three years.