Year,Value,NumPoints
1900,-0.731487,494
1901,-0.396476,471
1902,-1.79169,478
1903,-0.168763,482
1904,-0.166395,473
1905,0.124167,446
1906,-0.0335732,461
1907,-0.676846,490
1908,-0.363423,515
1909,-0.762712,512
1910,-0.426072,529
1911,-0.229758,508
1912,-0.712379,604
1913,-0.333592,567
1914,-0.183652,602
1915,-0.679944,627
1916,-0.652878,638
1917,-1.12269,620
1918,-0.846819,612
1919,-0.945654,600
1920,0.12182,609
1921,0.115562,642
1922,-0.136675,688
1923,0.19497,661
1924,0.454243,682
1925,-0.0501064,688
1926,0.423055,702
1927,-0.346423,720
1928,0.374375,735
1929,-0.167913,798
1930,0.266318,820
1931,0.335372,838
1932,0.320419,885
1933,-0.445683,967
1934,0.929907,979
1935,0.302151,1012
1936,0.337631,1119
1937,1.15557,1151
1938,1.3224,1137
1939,0.536906,1129
1940,0.597282,1168
1941,-0.262897,1173
1942,0.412236,1161
1943,1.41436,1181
1944,1.14566,1177
1945,0.522783,1201
1946,-0.171305,1255
1947,0.698915,1295
1948,0.393846,1372
1949,0.338404,1407
1950,0.168082,1407
1951,0.120842,1469
1952,0.000206138,1483
1953,0.937997,1487
1954,0.7146,1493
1955,-0.341646,1509
1956,-0.126983,1530
1957,0.110742,1552
1958,-0.31819,1570
1959,0.51885,1577
1960,0.271333,1568
1961,-0.0515332,1578
1962,0.507956,1579
1963,-0.00116304,1585
1964,-0.57518,1582
1965,-0.387103,1588
1966,-0.835098,1582
1967,0.51609,1577
1968,-0.282437,1571
1969,-0.216925,1575
1970,-0.138105,1563
1971,-0.0945636,1582
1972,-0.430804,1558
1973,0.210999,1541
1974,-0.193118,1539
1975,0.334091,1558
1976,-0.0639245,1563
1977,0.272665,1563
1978,-0.128557,1562
1979,-0.548891,1545
1980,0.327944,1534
1981,1.24196,1504
1982,-0.282445,1530
1983,0.391753,1528
1984,0.359946,1532
1985,0.289388,1522
1986,0.176373,1520
1987,-0.270726,1534
1988,0.743109,1524
1989,0.574769,1526
1990,0.583072,1527
1991,0.871379,1534
1992,-0.0414715,1538
1993,0.650774,1522
1994,0.339161,1514
1995,1.46559,1527
1996,0.791445,1477
1997,0.892959,1439
1998,0.634237,1453
1999,0.518044,1452
2000,1.11375,1461
2001,1.06761,1442
2002,1.1806,1440
2003,1.59929,1429
2004,0.629002,1428
2005,2.03242,1454
2006,1.63891,1479
2007,2.05637,1457
2008,1.49495,1460
2009,1.22146,1444
2010,1.96383,1438
2011,2.22421,1449
2012,1.90358,1432
2013,1.52654,1420
2014,1.90992,1386
2015,1.93437,1390
2016,2.98211,1395
2017,2.45598,1376
2018,2.00024,1385
2019,2.63618,1382
2020,2.92593,1376
2021,1.76607,1369
2022,2.40922,1378