David Cameron has been the Prime Minister of the UK since May 11 2010. Currently the Prime Minister receives £142,500 including a salary of £65,737 as a member of parliament. Until 2006, the Lord Chancellor was the highest paid member of the government ahead of the Prime Minister.
The Prime Minister of Japan, Shinzo Abe, is the head of government of Japan. He takes $202,700 home every year. That is around eight times the annual salary of an average Japanese citizen.
Sauli Niinisto has been the President of Finland since March 1 2012. Currently the President receives an annual salary of €160,000.