LOCALE

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Creating SVG Elements from Data</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
			}
            
            h1 {
                font-size: 24px;
                margin: 0;
            }
            
            p {
                font-size: 14px;
                margin: 10 px 0 0 0;
            }

svg {
				background-color: white;
			}
            
            circle:hover {
                fill: orange;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: grey;
                shape-rendering: crispEdges;
            }
            
            .axis text{
                fill: grey;
                font-size: 11px;
                font-family: sans-serif;
            }

</style>
	</head>
	<body>        
        <H1>The number of grant applications by year 2011-2014</H1>
        <p>This horizontal bar chart displays the number of grant applications for events organized in the Provence of Groningen.</p>
		<script type="text/javascript">

var w = 500;           
            var h = 400;              
            var padding = [20, 10, 50, 70]; // Top, right, bottom, left
            
            var nl = d3.locale({ 
                "decimal": ",",
                "thousands": ".",
                "grouping": [3],
                "currency": ["€", ""],
                "dateTime": "%a %b %e %X %Y",
                "date": "%d-%m-%Y",
                "time": "%H:%M:%S",
                "periods": ["AM", "PM"],
                "days": ["zondag", "maandag", "dinsdag", "woensdag", "donderdag", "vrijdag", "zaterdag"],
                "shortDays": ["zo", "ma", "di", "wo", "do", "vr", "za"],
                "months": ["januari", "februari", "maart", "april", "mei", "juni", "juli", "augustus", "september", "oktober", "november", "december"],
                "shortMonths": ["jan", "feb", "mrt", "apr", "mei", "jun", "jul", "aug", "sep", "okt", "nov", "dec"]
            })
            
            var xScale = d3.scale.linear().range([padding[3], w - padding[1] - padding [3]]);
            var yScale = d3.scale.linear().range([padding[0], h - padding[2]]);
            
            var xAxis = d3.svg.axis().scale(xScale).orient("bottom").tickFormat(nl.numberFormat("thousands"));
            var yAxis = d3.svg.axis().scale(yScale).orient("left");

svg.selectAll("circle")
					.data(dataset)
					.enter()
					.append("circle")
                    .filter(function(d) { return d.beslissing_gs === "Subsidie verlenen" })
					.attr({
                        cx: function(d) {return xScale(+d.verleend_bedrag);},
				        cy: function(d) {return yScale(+d.aantal_bezoekers);},
                        r: 2,
                        fill: "steelblue"
                    })
                    .append("title")
					.text(function(d) {
						return "Verleend bedrag: " + d.verleend_bedrag + " en aantal bezoekers " + d.aantal_bezoekers;
					});
                
                svg.append("g")
                    .attr({
                        class: "x axis",
                        transform: "translate(0,"+ (h - padding[2] + 0) + ")"
                    })        
                    .call(xAxis);
                
                svg.append("g")
                    .attr({
                        class: "y axis",
                        transform: "translate(" + (padding[3] - 0) + ",0)"
                    })        
                    .call(yAxis);
                              
                
			});

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js