{
 "layers": [
  {
   "layerId": 1,
   "layerName": "pmi_naissance_geo",
   "layerType": "Couche d\u2019entités",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "pas de naissance",
     "url": "8cfd983bba5f5f1edf5534c316d3c650",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPp7u5u4eTkdGCgAvj+/fsBFpBh4eHh1tQwcOXKlQwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERht+/fz8AKmmpAUBmAQB3mBNRSuZn8AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "de 1 à 10",
     "url": "23c9ed9fefcc57bc895bd1f0f5f3727a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPp7m9u4eTmcGCgAvj+9ccBFpBhEUmO1tQwcMW8/QwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERht+//jgAKmmpAUBmAQBkVRNWu/7QRwAAAABJRU5ErkJggg==",
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     "groupId": "0",
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    },
    {
     "label": "de 11 à 25",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOpay1rYeVkdmCgAvj9/e8BFpBhhh6S1tQw8PyO5wwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhr+//z0AKmmpAUBmAQBAWhOmg4Ga0QAAAABJRU5ErkJggg==",
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     "label": "de 26 à 50",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMpqctpYWT978BABfD/N+MBFpBhvEZfralh4Odz3AwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhv9/Mx4AlbTUACCzAEWFEfVB/ci4AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "de 51 à 100",
     "url": "7b1be0573eea454f023e3960b763d743",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPJKEts+cv824GBCoD5L+sBFpBhbyWuW1PDQOEXmgwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhsx/WQ+ASlpqAJBZADlFEDiF6hNMAAAAAElFTkSuQmCC",
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     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "plus de 100 naissances",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "obs_value"
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}