[
  {
    "year": 2014,
    "us": 100,
    "illinois": 100,
    "pennsylvania": 100,
    "new_jersey": 100
  },
  {
    "year": 2015,
    "us": 100,
    "illinois": 103.3,
    "pennsylvania": 103.3,
    "new_jersey": 98.3
  },
  {
    "year": 2016,
    "us": 98.9,
    "illinois": 106.4,
    "pennsylvania": 101.1,
    "new_jersey": 95.9
  },
  {
    "year": 2017,
    "us": 98.6,
    "illinois": 104.8,
    "pennsylvania": 100.8,
    "new_jersey": 93.7
  },
  {
    "year": 2018,
    "us": 105.2,
    "illinois": 113.7,
    "pennsylvania": 108.5,
    "new_jersey": 97.5
  },
  {
    "year": 2019,
    "us": 102.8,
    "illinois": 110,
    "pennsylvania": 103.8,
    "new_jersey": 95.7
  },
  {
    "year": 2020,
    "us": 104.7,
    "illinois": 113.1,
    "pennsylvania": 103.8,
    "new_jersey": 98.7
  },
  {
    "year": 2021,
    "us": 109.5,
    "illinois": 116.9,
    "pennsylvania": 104.6,
    "new_jersey": 105.5
  },
  {
    "year": 2022,
    "us": 126.4,
    "illinois": 137.3,
    "pennsylvania": 127.4,
    "new_jersey": 116.9
  },
  {
    "year": 2023,
    "us": 127.4,
    "illinois": 136.2,
    "pennsylvania": 132.1,
    "new_jersey": 112.6
  },
  {
    "year": 2024,
    "us": 135.1,
    "illinois": 143,
    "pennsylvania": 142.6,
    "new_jersey": 116.3
  }
]