const data = {
  "labels": [
    "Symbian",
    "Blackberry",
    "Other",
    "Android",
    "IOS"
  ],
  "datasets": [
    {
      "data": [
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      ],
      "backgroundColor": [
        "rgba(255, 99, 132, 0.2)",
        "rgba(54, 162, 235, 0.2)",
        "rgba(255, 206, 86, 0.2)",
        "rgba(75, 192, 192, 0.2)",
        "rgba(153, 102, 255, 0.2)"
      ],
      "borderColor": [
        "rgba(255, 99, 132, 1)",
        "rgba(54, 162, 235, 1)",
        "rgba(255, 206, 86, 1)",
        "rgba(75, 192, 192, 1)",
        "rgba(153, 102, 255, 1)"
      ],
      "borderWidth": 1
    }
  ]
}