Understanding the size and scope of the automation sector is worth understanding on a periodic basis. This 4 minute video has a look at this information from several angles.
I received an e-mail from Mike Willey of ReMaP Sales Planning http://www.remapsalesplanning.com/ suggesting I view a YouTube video about the major differences and market sizes of Process Automation and Factory Automation. The video http://www.youtube.com/watch?v=UTOBS091tpA&feature=youtu.be succinctly explains the differences between these sectors of the industrial automation market and then provides additional information on how the process automation market is further divided by geography and sector (Instruments, control systems, valves, etc.)
