The technological advances have led to rapid growth of the tech industry and jobs such as developers, designers, and software testers. Between 2000-2010, the tech industry grew 4.6% annually on average and added nearly 100,000 jobs between January-June 2012. By 2020, employment in computer occupations is expected to increase 22%. Jobs related to app development grew from non-existent in 2007 after the iPhone launch to nearly 500,000 jobs in the US in 2011. Developers, designers, and software testers will continue to be in high demand as the tech sector's importance grows.