Year,Slovak Republic,Niger,Saudi Arabia
1961,2.99236759278997,2.89937156940821,3.66621399112939
1965,1.00346609779566,2.85238476647929,3.71483672178757
1970,0.433176523644296,2.71485723231712,4.16577893312734
1974,1.0326455261866,2.68478757609532,5.15626948504332
1979,0.993954931762582,2.94137448632528,5.80728931141649
1983,0.726754862038002,2.96378138778661,6.08900149035124
1988,0.530027872017792,3.02985788052672,5.32095708351149
1992,0.0324651148981277,3.11848225510655,4.60467680578702
1997,0.184629991205462,3.32029101351841,3.85735211036338
2001,-0.18301227099618,3.50878624306039,5.20103909905512
2006,0.00459711883568263,3.65709371425878,4.28087578648729
2010,0.0931912731899838,3.72535077368531,-0.992481797243179
2015,0.0950338786482762,3.69640590007582,5.18685551856216
2019,0.135328072840865,3.36654855482346,-0.439701419074031
2024,-0.0861108401600769,3.28101480132484,4.63120232685885