{
"items": [
{
"date": 2004, 
"country": "Greece", 
"value": 10.0, 
"label": 0
}, 
{
"date": 2004, 
"country": "Ireland", 
"value": 29.0, 
"label": 1
}, 
{
"date": 2014, 
"country": "Greece", 
"value": 19.0, 
"label": 2
}, 
{
"date": 2014, 
"country": "Ireland", 
"value": 37.0, 
"label": 3
}
], 
"properties": {"date": {"valueType": "number", "order": 0}, "country": {"valueType": "text", "order": 1}, "value": {"valueType": "number", "order": 2}}
}