How does it work?
Two selectors are available to you: the first is a calendar to choose your date of birth, and the second is a selector for your country of birth. Once your selections are made, click on "Submit". After that, you will be asked to specify your gender; click on this option to become a contributor. Finally, click on the "Discover" button, which flashes green. You will then discover two new selectors: navigate according to your preferences to explore the statistics.