->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.min.css"
          integrity="sha512-/zs32ZEJh+/EO2N1b0PEdoA10JkdC3zJ8L5FTiQu82LR9S/rOQNfQN7U59U9BC12swNeRAz3HSzIL2vpp4fv3w=="
          crossorigin="anonymous" referrerpolicy="no-referrer"/>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-12">
            <div class="card">
                <div class="card-body">
                    <canvas id="canvas"></canvas>
             