Tony Abbott and Malcolm Turnbull and the leadership spill are the two most talked about topics amongst Australian Facebook users during 2015.
The 100th anniversary of Anzac Day is third on the list, followed by the Syrian civil war and refugee crisis.
The Paris massacre in November is ranked seventh in the analysis of the 14 million Australian members.
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Gold Coast theme parks Movie World and Sea World are the sixth and seventh most checked-in places for the year. Dreamworld is tenth.
The top three are Crown Casino in Melbourne, the MCG and Darling Harbour.
Director of policy for Facebook Australia Mia Garlick said 2015 was all about the serious issues.
“This is the most prevalent politics has been in a non-election year,” Ms Garlick said.
“We’ve also seen global crises capture Australians’ attention.”
Australians still had an appetite for the lighter things in life, with music megastars Ed Sheeran and Taylor Swift also in the top 15.