You are working for a company that is considering investing in a foreign country. Investing in countries with different traditions is an important element of your company’s long-term strategic goals. As such, management has requested a report regarding the attractiveness of alternative countries based on the potential return of FDI. Accordingly, the ranking of the top 25 countries in terms of FDI attractiveness is a crucial ingredient for your report. A colleague mentioned a potentially useful tool called the "FDI Confidence Index" which is updated periodically. Find this index, and provide additional information regarding how the index is constructed.