Highcharts.chart('container', {
    chart: {
        marginTop: 5
    },
    title: {
        text: 'Flats sold per month'
    },

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },

    yAxis: {
        allowDecimals: false,
        title: {
            text: 'Flats'
        }
    },

    series: [{
        data: [1, 3, 5, 2, 3, 9, 6, 7, 3, 5, 4, 3]
    }]
});