Year	Years
1950	81.84092
1955	81.33472
1960	81.17468
1965	80.25266
1970	82.93609
1975	86.4384
1980	92.02517
1985	95.77968
1990	102.22904
1995	103.65696
2000	104.985
2005	105.20482
2010	104.5029
2015	103.48165
2020	102.35034
2025	101.68017
2030	101.38516
2035	101.51928
2040	101.66844
2045	101.66376
2050	101.63483
2055	101.63353
2060	101.78073
2065	101.93532
2070	102.17643
2075	102.32532
2080	102.61566
2085	102.75126
2090	102.94842
2095	103.04569
2100	103.21954