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    "value": 243.71596
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    "year": 1983,
    "value": 248.128
  },
  {
    "year": 1984,
    "value": 246.85518
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    "year": 1985,
    "value": 256.00006
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    "value": 257.58554
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    "year": 1987,
    "value": 263.2865
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  {
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    "value": 255.19058
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  {
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  {
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  {
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    "value": 258.62503
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  {
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    "value": 259.7893
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  {
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    "value": 255.29948
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  {
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  {
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    "value": 253.57434
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  {
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    "value": 255.50873
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  {
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  {
    "year": 2009,
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  {
    "year": 2010,
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  {
    "year": 2011,
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  {
    "year": 2012,
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    "year": 2013,
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    "year": 2014,
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