Canada is a federal parliamentary democracy and a constitutional monarchy Queen Elizabeth II being the current head of state. The country is officially bilingual at the federal level. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries, with a population of approximately 35 million as of 2015. Its advanced economy is one of the largest in the world, relying chiefly upon its abundant natural resources and well-developed international trade networks. Canada's long and complex relationship with the United States has had a significant impact on its economy and culture.
Canada is a developed country and one of the wealthiest in the world, with the thirteenth highest per capita income globally, and the eighth highest ranking in the Human Development Index. It ranks among the highest in international measurements of government transparency, civil liberties, quality of life, economic freedom, and education. Canada is a member of the Commonwealth of Nations, and is furthermore part of several major international and intergovernmental institutions or groupings, including NATO the G8, the Group of Ten, the G20, the North American Free Trade Agreement and the Asia-Pacific Economic Cooperation forum.