Hi, I searched everywhere but not able to find a solution.

Is there a way I can filter the contacts that are new to my account? I can see an overview in the dashboard that shows the number of new contacts, but that's not clickable and I am not able to get more data about it. I need to know how many of my leads are new. 

I also need to know how many new leads I get in each month. Is there any way to find these metrics? Please help.