var barOptions = {
        scales:{
            xAxes:[{
                gridLines:{display:false}
            }],
            yAxes: [{
                gridLines:{display:false}
            }]
        },
        hover: {
            onHover: handleHover
        },
    animation:{
         onComplete: function () {
                var ctx = this.chart.ctx;
                ctx.font = Chart.helpers.fontString(Chart.defaults.global.defaultFontFamily, 'normal', Chart.defaults.global.defaultFontFamily);
                ctx.textAlign = 'center';
                ctx.textBaseline = 'bottom';

                this.data.datasets.forEach(function (dataset) {
                    for (var i = 0; i < dataset.data.length; i++) {
                        var model = dataset._meta[Object.keys(dataset._meta)[0]].data[i]._model,
                            scale_max = dataset._meta[Object.keys(dataset._meta)[0]].data[i]._yScale.maxHeight;
                        ctx.fillStyle = '#444';
                        var y_pos = model.y - 5;
                        if ((scale_max - model.y) / scale_max >= 0.5)
                            y_pos = model.y + 20;
                        ctx.fillText(dataset.data[i], model.x, y_pos);
                    }
                });
            }
    }
};

var     chartBar      = new Chart(ctx, {
                type: 'bar',
                data: data,
                options: barOptions,
            });