{
    "config": {
        "type": "bar",
        "data": {
            "labels": ["2016", "2018", "2020", "2024", "2030"],
            "datasets": [{
                "backgroundColor": "#FF6384",
                "data": [1, null, 3, 4, 5]
            }, {
                "backgroundColor": "#36A2EB",
                "data": [5, 4, 3, null, 1]
            }, {
                "backgroundColor": "#FFCE56",
                "data": [3, 5, 2, null, 4]
            }]
        },
        "options": {
            "responsive": false,
            "scales": {
                "x": {
                    "display": false,
                    "stacked": true
                },
                "y": {
                    "display": false,
                    "stacked": true,
                    "beginAtZero": true
                }
            }
        }
    },
    "options": {
        "canvas": {
            "height": 256,
            "width": 512
        }
    }
}
