Frequent locations history not shown?

Hey guys. Frequent locations history is not showing up under my frequent locations. What should I do?

I am sure that my frequent locations is enabled since the day I got this phone. I tried on my iPhone 5 and 6 plus. 6 plus I got it on the launch date and frequent locations is enabled since then. iPhone 5 enabled too since it's updated to iOS 7. What's wrong with settings? Why the history is not showing on frequent locations? I frequent 2 locations on both phones, my home and my workplace. Please help me guys.

 

But my 6 plus had already it enabled since 19th September ): and I think more than a year on my iPhone 5. ):

 

Hope it is not my phone problem? Someone please explain?