The data visualizations look really cool.
Firstly I have a bit of issue about how to browse between different charts. Then I got it, but I find it still complicated. The navigation elements could be more clear.
I am an economist and I didn't get the ECI ranking at first sight. Now I understand the more complex the better, but it could be explained better. I would also welcome the possibility to compare two countries in some basic metrics.
Anyways, great job. Keep up the good work!