{
"items": [
{
"country": "Poland", 
"label": 0, 
"2004": 6.0, 
"2012": 20.0
}
], 
"properties": {"country": {"valueType": "text", "order": 0}, "2004": {"valueType": "number", "order": 1}, "2012": {"valueType": "number", "order": 2}}
}