{
 "layers": [
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   "layerId": 0,
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   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "> 18,200",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMJTSto+fGPwYGBCoCDieEAC8iwzS+YralhoK/EXwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIQw4mhgOgkpYaAGQWAEapDWe08ikPAAAAAElFTkSuQmCC",
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     "values": [
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    {
     "label": "15,600 to 18,200",
     "url": "bbe171e537e4b03849bd18e2393daa6f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMJLehs+cHI5cBABcDx/9sBFpBhm1mCralhoO+ftQwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhhz/vx0AlbTUACCzANF2EhFEaql+AAAAAElFTkSuQmCC",
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     "height": 20,
     "width": 20,
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     "groupId": "0",
     "height": 20,
     "width": 20,
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    {
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     "url": "de1b2a675eb6ce6b68c79e493659822f",
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   ],
   "legendGroups": [
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     "id": "0",
     "heading": "(Thousand Barrels)"
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