Edit in JSFiddle

Highcharts.chart('container', {
    chart: {
        marginRight: 80
    },
    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },
    yAxis: [{
        lineWidth: 1,
        title: {
            text: 'Primary Axis'
        }
    }, {
        lineWidth: 1,
        opposite: true,
        title: {
            text: 'Secondary Axis'
        }
    }],

    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }, {
        data: [144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 529.2],
        yAxis: 1
    }]
});

<div id="container" style="height: 400px"></div>
<script src="https://code.highcharts.com/highcharts.js"></script>