Trading Center

The Trading Center is a building that produces money per hour and can be increased by upgrading the building. 
==Upgrade Information==
Level 	Money per hour	Health 	Oil required	Iron required	Upgrade time
Level 1 	400 	2000 	600 	600 	3 seconds
Level 2 	900 	Unknown	Unknown 	Unknown 	30 seconds
Level 3 	Unknown 	Unknown	Unknown 	Unknown 	5 minutes
Level 4 	Unknown 	Unknown	Unknown 	Unknown 	30 minutes
Level 5 	Unknown 	Unknown	Unknown 	Unknown 	3 hours
Level 6 	Unknown 	Unknown	Unknown 	Unknown 	6 hours
Level 7 	Unknown 	Unknown	Unknown 	Unknown 	9 hours
Level 8 	Unknown 	Unknown	Unknown 	Unknown 	Unknown
Level 9 	Unknown 	Unknown	Unknown 	Unknown 	Unknown
Level 10	Unknown 	Unknown	Unknown 	Unknown 	Unknown
Level 11	 	 	 	 	
Level 12	 	 	 	 	
Level 13	 	 	 	 	
Level 14	 	 	 	 	
Level 15	 	 	 	 	
Level 16	 	 	 	 	
Level 17	 	 	 	 	
Level 18	 	 	 	 	
Category:Buildings