Year	Index (Units)
1980	0.045
1981	0.102
1982	0.230
1983	0.578
1984	2.795
1985	9.998
1986	15.002
1987	17.866
1988	21.428
1989	25.766
1990	29.997
1991	36.768
1992	41.370
1993	46.113
1994	52.335
1995	56.703
1996	61.921
1997	66.958
1998	71.546
1999	75.940
2000	77.416
2001	78.776
2002	82.538
2003	82.106
2004	82.240
2005	83.082
2006	84.303
2007	85.015
2008	86.139
2009	89.941
2010	91.042
2011	92.378
2012	95.454
2013	97.080
2014	97.719
2015	100.000
2016	100.378
2017	100.419
2018	101.075
2019	102.997
2020	103.997
2021	106.150
2022	111.166
2023	115.449
2024	118.420
2025	121.782
2026	124.811
2027	127.634
2028	130.402
2029	133.162