[{ "year": 2005, "income": 23.5, "expenses": 18.1 }, { "year": 2006, "income": 26.2, "expenses": 22.8 }, { "year": 2007, "income": 30.1, "expenses": 23.9 }, { "year": 2008, "income": 29.5, "expenses": 25.1 }, { "year": 2009, "income": 24.6, "expenses": 25 }]