AmCharts.makeChart("chartBubble1", {
    "balloon": {
    	"fixedPosition": true
    },
    "gradientRatio": [-0.4, -0.4, -0.4, -0.4, -0.4, -0.4, 0, 0.1, 0.2, 0.1, 0, -0.2, -0.5],
	"chartScrollbar": {},
	"chartCursor": {},
	"marginLeft": 46,
	"fontFamily": "Open Sans",
	"marginRight": 0,
	"marginTop": 17,
	"marginBottom": 35,
	"export": {
		"enabled": true
	},
	"pathToImages": "//cdn.amcharts.com/lib/3/images/", // required for grips
	"startDuration": 0,
	"type": "xy",
	"theme": "light",
	"titles": [{
        "id": "Title-1",
        "size": 15,
        "text": "Projects by Priority",
		"color": "#555"
    }],
	"dataDateFormat": "MM/DD/YYYY",
	"valueAxes": [{
		"position": "bottom",
		"axisAlpha": 0,
		"type": "date",
		"minimumDate": new Date(2016, 1, 1),
		"maximumDate": new Date(2020, 12, 31)
	}, {
		"minMaxMultiplier": 1.2,
		"integersOnly": false,
		"maximum": 26,
		"minimum": -1,
		"reversed": true,
		"showFirstLabel": false,
		"showLastLabel": false,
		"axisAlpha": 0,
		"position": "left"
	}],
	"graphs": [{
		"bullet": "bubble",
		"lineAlpha": 0,
		"valueField": "quantity",
		"xField": "middleDate",
		"yField": "projectPriority",
		"colorField": "projectColor",
		"fillAlphas": 0,
		"bulletBorderAlpha": 0.01,
		"bulletBorderThickness": 0.1,
		"maxBulletSize": 80,
		"minBulletSize": 10,
		"showHandOnHover": true,
		"balloonFunction": function (graphDataItem, graph) {
			var dataItem = graphDataItem.dataContext;
			var balloonText =
				dataItem.projectName +
				"<br/>Quantity: " + dataItem.quantity.formatNumber(false) +
				"<br/>Cost: " + "$" + dataItem.cost.formatNumber() +
                "<br/>Priority: " + dataItem.projectPriority.formatNumber();

			return balloonText;
		}
	}]
});