Germany

For some odd reason I haven’t heard too much of Germany lately and yet, quietly sitting in the middle of Europe they have managed be the fourth country in the world by nominal GDP. They do have a large population of 80 million and almost 73% of them are from age 15 to 64. The working population has been growing for couple of decades and managed to reach from 65% in 80s to almost 73% in 2012.