"Oxygen", "symbol" => "O","y"=>46.6), array("label"=>"Silicon", "symbol" => "Si","y"=>27.7), array("label"=>"Aluminium", "symbol" => "Al","y"=>13.9), array("label"=>"Iron", "symbol" => "Fe","y"=>5), array("label"=>"Calcium", "symbol" => "Ca","y"=>3.6), array("label"=>"Sodium", "symbol" => "Na","y"=>2.6), array("label"=>"Magnesium", "symbol" => "Mg","y"=>2.1), array("label"=>"Others", "symbol" => "Others","y"=>1.5), ) ?>