test_data.json

{
	"type": "FeatureCollection",
	"metadata": {		
		"title": "Refugees Map: Ruta Atlántica"
	},
	"features": [
		{
			"type": "Feature",
			"properties": {
				"place": "Canarias",
				"arrivals": [
					[2020,23023],
					[2019,2687],
					[2018,1307],
					[2017,425],
					[2016,672],
					[2015,875],
					[2014,296],
					[2013,196],
					[2012,173],
					[2011,340],
					[2010,196],
					[2009,2246],
					[2008,9181],
					[2007,12478],
					[2006,31678],
					[2005,4715]
				]				
			},
			"geometry": {
				"type": "Point",
				"coordinates": [27.992401,-15.628671]
			}
		}
	]
}