Year,Value,Rank
1950,-0.099,33
1951,2.247,4
1952,-0.334,40
1953,1.185,11
1954,-0.353,42
1955,-0.078,32
1956,-0.057,30
1957,2.31,3
1958,0.306,24
1959,0.605,18
1960,-0.125,36
1961,0.822,14
1962,-0.459,45
1963,-0.65,57
1964,-0.836,67
1965,1.805,7
1966,0.796,16
1967,0.844,13
1968,-0.511,50
1969,1.864,6
1970,-0.489,47
1971,-0.754,62
1972,1.97,5
1973,-0.891,68
1974,-0.111,35
1975,-0.405,43
1976,1.276,9
1977,-0.272,39
1978,-0.825,66
1979,-0.027,28
1980,-0.248,38
1981,-0.566,51
1982,1.2,10
1983,0.8,15
1984,-1.116,71
1985,-0.495,48
1986,0.377,21
1987,1.592,8
1988,-1.674,74
1989,-0.674,59
1990,-0.65,56
1991,-0.162,37
1992,-0.64,55
1993,0.285,26
1994,-0.045,29
1995,-0.59,53
1996,0.375,22
1997,2.609,1
1998,-0.477,46
1999,-0.666,58
2000,-0.804,63
2001,-0.956,69
2002,0.475,20
2003,-1.382,72
2004,0.491,19
2005,-0.44,44
2006,-0.343,41
2007,-1.044,70
2008,-0.109,34
2009,-0.074,31
2010,-1.639,73
2011,0.302,25
2012,0.284,27
2013,-0.817,65
2014,0.364,23
2015,2.378,2
2016,-1.919,76
2017,-0.723,61
2018,-0.678,60
2019,1.098,12
2020,-1.713,75
2021,-0.593,54
2022,-0.498,49
2023,0.698,17
2024,-0.813,64
2025,-0.583,52