Year	Index (Units)
1980	2.779
1981	3.024
1982	2.960
1983	3.174
1984	3.402
1985	4.351
1986	5.287
1987	5.779
1988	6.489
1989	7.800
1990	12.465
1991	13.715
1992	15.665
1993	17.489
1994	19.520
1995	21.200
1996	23.500
1997	25.180
1998	27.060
1999	28.390
2000	29.830
2001	32.490
2002	34.540
2003	36.570
2004	39.940
2005	43.360
2006	45.870
2007	49.890
2008	54.580
2009	54.420
2010	57.360
2011	60.920
2012	63.010
2013	65.780
2014	67.720
2015	69.790
2016	72.750
2017	76.880
2018	78.660
2019	81.340
2020	85.260
2021	87.870
2022	95.990
2023	100.000
2024	104.000
2025	108.194
2026	112.495
2027	117.031
2028	121.751
2029	126.660