Year	Index (Units)
1980	5.019
1981	5.291
1982	5.568
1983	5.558
1984	6.061
1985	7.302
1986	6.439
1987	6.139
1988	6.560
1989	7.285
1990	7.650
1991	11.092
1992	11.320
1993	11.853
1994	12.599
1995	14.469
1996	13.167
1997	13.509
1998	13.820
1999	14.799
2000	14.188
2001	13.578
2002	15.480
2003	16.444
2004	17.736
2005	19.921
2006	23.610
2007	27.959
2008	38.932
2009	41.711
2010	47.786
2011	64.950
2012	74.693
2013	80.408
2014	86.128
2015	94.204
2016	100.000
2017	116.504
2018	128.831
2019	153.972
2020	181.948
2021	245.794
2022	328.887
2023	423.354
2024	514.516
2025	595.490
2026	678.024
2027	766.133
2028	857.067
2029	958.793