National Power scores are the product of an index combining the weighted factors of GDP

Gross domestic product

Gross domestic product refers to the market value of all final goods and services produced within a country in a given period. GDP per capita is often considered an indicator of a country's standard of living....

, defense spending, population, and technology

Technology

Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...

. Scores are calculated by the International Futures

International Futures

International Futures is a global integrated assessment model designed to help in thinking strategically and systematically about economic, social, political and environmental systems. Initially created by Barry B...

 computer model and are expressed as a state’s relative share
(percentage) of all global power.

The forecast of these values is hosted by the Google Public Data Explorer

Google Public Data Explorer

Google's provides public data and forecasts from a range of international organizations and academic institutions including the World Bank, OECD, Eurostat and the University of Denver. These can be displayed as line graphs, bar graphs, cross sectional plots or on maps....

. Graphs for any country and some regional groupings can be produced to 2060 for the International Futures

International Futures

International Futures is a global integrated assessment model designed to help in thinking strategically and systematically about economic, social, political and environmental systems. Initially created by Barry B...

 Base Case or scenarios produced for the United Nations Environment Programme

United Nations Environment Programme

The United Nations Environment Programme coordinates United Nations environmental activities, assisting developing countries in implementing environmentally sound policies and practices. It was founded as a result of the United Nations Conference on the Human Environment in June 1972 and has its...

 Global Environmental Outlook 4.

In 2010

Power as percentage of global power in 2010.

In 2025

According to the Atlantic Council

Atlantic Council

The Atlantic Council is a Washington, D.C. think tank and public policy group whose mission is to "promote constructive U.S. leadership and engagement in international affairs based on the central role of the Atlantic community in meeting the international challenges of the 21st...

 and the International Futures

International Futures

International Futures is a global integrated assessment model designed to help in thinking strategically and systematically about economic, social, political and environmental systems. Initially created by Barry B...

model, the relative political and economic clout of many countries will shift by 2025.

Power as percentage of global power in 2025.