The ranking includes 174 countries. Switzerland is the leader with an index of 81.88 points. Singapore (81.03) and Hong Kong (80.17) are next.
The top ten also includes Norway, Denmark, the Netherlands, Britain and Sweden.
The index of Ukraine is 50.57 points – putting it 20 up in the ranking compared to the previous year.
Russia is in 100th place, Belarus 85th and Moldova 87th.