[
  {
    "year": 1870,
    "value": 3096
  },
  {
    "year": 1880,
    "value": 3044
  },
  {
    "year": 1890,
    "value": 2983
  },
  {
    "year": 1900,
    "value": 2938
  },
  {
    "year": 1913,
    "value": 2900
  },
  {
    "year": 1929,
    "value": 2316
  },
  {
    "year": 1938,
    "value": 1756
  },
  {
    "year": 1950,
    "value": 2021.98
  },
  {
    "year": 1951,
    "value": 2063.8
  },
  {
    "year": 1952,
    "value": 2060.12
  },
  {
    "year": 1953,
    "value": 2053.91
  },
  {
    "year": 1954,
    "value": 2030.68
  },
  {
    "year": 1955,
    "value": 2038.46
  },
  {
    "year": 1956,
    "value": 2023.37
  },
  {
    "year": 1957,
    "value": 1995.38
  },
  {
    "year": 1958,
    "value": 1960.95
  },
  {
    "year": 1959,
    "value": 1986.87
  },
  {
    "year": 1960,
    "value": 1968.41
  },
  {
    "year": 1961,
    "value": 1953.61
  },
  {
    "year": 1962,
    "value": 1973.51
  },
  {
    "year": 1963,
    "value": 1961.96
  },
  {
    "year": 1964,
    "value": 1971.53
  },
  {
    "year": 1965,
    "value": 1991.91
  },
  {
    "year": 1966,
    "value": 2000.82
  },
  {
    "year": 1967,
    "value": 1977.72
  },
  {
    "year": 1968,
    "value": 1974.18
  },
  {
    "year": 1969,
    "value": 1975.34
  },
  {
    "year": 1970,
    "value": 1930.72
  },
  {
    "year": 1971,
    "value": 1914.99
  },
  {
    "year": 1972,
    "value": 1911.75
  },
  {
    "year": 1973,
    "value": 1910.32
  },
  {
    "year": 1974,
    "value": 1882.34
  },
  {
    "year": 1975,
    "value": 1850.8
  },
  {
    "year": 1976,
    "value": 1846.91
  },
  {
    "year": 1977,
    "value": 1847.02
  },
  {
    "year": 1978,
    "value": 1853.67
  },
  {
    "year": 1979,
    "value": 1856.07
  },
  {
    "year": 1980,
    "value": 1840.47
  },
  {
    "year": 1981,
    "value": 1828.64
  },
  {
    "year": 1982,
    "value": 1809.88
  },
  {
    "year": 1983,
    "value": 1819.48
  },
  {
    "year": 1984,
    "value": 1835.54
  },
  {
    "year": 1985,
    "value": 1840.8
  },
  {
    "year": 1986,
    "value": 1821.1
  },
  {
    "year": 1987,
    "value": 1828.61
  },
  {
    "year": 1988,
    "value": 1839.12
  },
  {
    "year": 1989,
    "value": 1852.08
  },
  {
    "year": 1990,
    "value": 1836.18
  },
  {
    "year": 1991,
    "value": 1827.74
  },
  {
    "year": 1992,
    "value": 1815.51
  },
  {
    "year": 1993,
    "value": 1831.55
  },
  {
    "year": 1994,
    "value": 1850.24
  },
  {
    "year": 1995,
    "value": 1860.37
  },
  {
    "year": 1996,
    "value": 1865.89
  },
  {
    "year": 1997,
    "value": 1872.51
  },
  {
    "year": 1998,
    "value": 1883.08
  },
  {
    "year": 1999,
    "value": 1886.01
  },
  {
    "year": 2000,
    "value": 1887.58
  },
  {
    "year": 2001,
    "value": 1866.69
  },
  {
    "year": 2002,
    "value": 1847.99
  },
  {
    "year": 2003,
    "value": 1832.54
  },
  {
    "year": 2004,
    "value": 1831.55
  },
  {
    "year": 2005,
    "value": 1829.11
  },
  {
    "year": 2006,
    "value": 1831.26
  },
  {
    "year": 2007,
    "value": 1828.84
  },
  {
    "year": 2008,
    "value": 1808.99
  },
  {
    "year": 2009,
    "value": 1764.89
  },
  {
    "year": 2010,
    "value": 1773.37
  },
  {
    "year": 2011,
    "value": 1782.51
  },
  {
    "year": 2012,
    "value": 1784.7
  },
  {
    "year": 2013,
    "value": 1791.31
  },
  {
    "year": 2014,
    "value": 1797.12
  },
  {
    "year": 2015,
    "value": 1808.72
  },
  {
    "year": 2016,
    "value": 1802.6
  },
  {
    "year": 2017,
    "value": 1795.58
  },
  {
    "year": 2018,
    "value": 1804.19
  },
  {
    "year": 2019,
    "value": 1796.65
  },
  {
    "year": 2020,
    "value": 1777.88
  },
  {
    "year": 2021,
    "value": 1788.7
  },
  {
    "year": 2022,
    "value": 1789.59
  },
  {
    "year": 2023,
    "value": 1788.88
  }
]