{ "elements": [ { "type": "line", "values": [ 1, 2, 1, null, null, null, null, null, null, null ] }, { "type": "line", "values": [ null, null, null, 1, 2, 1, null, null, null, null ] }, { "type": "line", "values": [ null, null, null, null, null, null, 1, 2, 1 ] } ], "title": { "text": "Thu Nov 20 2008" } }