Year	Index (Units)
1980	0.720
1981	0.985
1982	1.874
1983	2.483
1984	2.782
1985	3.203
1986	3.580
1987	4.182
1988	5.053
1989	5.887
1990	7.009
1991	8.425
1992	10.260
1993	11.264
1994	12.788
1995	15.753
1996	18.512
1997	20.965
1998	23.409
1999	25.761
2000	28.584
2001	31.802
2002	34.717
2003	37.997
2004	42.676
2005	48.565
2006	54.135
2007	59.201
2008	67.148
2009	72.415
2010	76.515
2011	80.248
2012	83.855
2013	88.242
2014	92.230
2015	92.970
2016	92.953
2017	94.464
2018	96.563
2019	98.587
2020	99.301
2021	101.016
2022	109.375
2023	109.949
2024	110.264
2025	113.480
2026	116.884
2027	120.391
2028	124.003
2029	127.723