"","time","value"
"1",1875,580.38
"2",1876,581.86
"3",1877,580.97
"4",1878,580.8
"5",1879,579.79
"6",1880,580.39
"7",1881,580.42
"8",1882,580.82
"9",1883,581.4
"10",1884,581.32
"11",1885,581.44
"12",1886,581.68
"13",1887,581.17
"14",1888,580.53
"15",1889,580.01
"16",1890,579.91
"17",1891,579.14
"18",1892,579.16
"19",1893,579.55
"20",1894,579.67
"21",1895,578.44
"22",1896,578.24
"23",1897,579.1
"24",1898,579.09
"25",1899,579.35
"26",1900,578.82
"27",1901,579.32
"28",1902,579.01
"29",1903,579
"30",1904,579.8
"31",1905,579.83
"32",1906,579.72
"33",1907,579.89
"34",1908,580.01
"35",1909,579.37
"36",1910,578.69
"37",1911,578.19
"38",1912,578.67
"39",1913,579.55
"40",1914,578.92
"41",1915,578.09
"42",1916,579.37
"43",1917,580.13
"44",1918,580.14
"45",1919,579.51
"46",1920,579.24
"47",1921,578.66
"48",1922,578.86
"49",1923,578.05
"50",1924,577.79
"51",1925,576.75
"52",1926,576.75
"53",1927,577.82
"54",1928,578.64
"55",1929,580.58
"56",1930,579.48
"57",1931,577.38
"58",1932,576.9
"59",1933,576.94
"60",1934,576.24
"61",1935,576.84
"62",1936,576.85
"63",1937,576.9
"64",1938,577.79
"65",1939,578.18
"66",1940,577.51
"67",1941,577.23
"68",1942,578.42
"69",1943,579.61
"70",1944,579.05
"71",1945,579.26
"72",1946,579.22
"73",1947,579.38
"74",1948,579.1
"75",1949,577.95
"76",1950,578.12
"77",1951,579.75
"78",1952,580.85
"79",1953,580.41
"80",1954,579.96
"81",1955,579.61
"82",1956,578.76
"83",1957,578.18
"84",1958,577.21
"85",1959,577.13
"86",1960,579.1
"87",1961,578.25
"88",1962,577.91
"89",1963,576.89
"90",1964,575.96
"91",1965,576.8
"92",1966,577.68
"93",1967,578.38
"94",1968,578.52
"95",1969,579.74
"96",1970,579.31
"97",1971,579.89
"98",1972,579.96