Year	Index (Units)
1990	0.039
1991	0.125
1992	0.375
1993	1.482
1994	2.396
1995	3.061
1996	4.803
1997	12.076
1998	16.976
1999	26.280
2000	36.979
2001	48.144
2002	56.757
2003	64.840
2004	70.778
2005	76.948
2006	80.702
2007	85.997
2008	91.415
2009	95.758
2010	103.398
2011	106.637
2012	111.930
2013	113.686
2014	114.627
2015	113.542
2016	112.936
2017	116.686
2018	120.491
2019	125.367
2020	127.959
2021	138.436
2022	161.099
2023	171.742
2024	179.782
2025	186.006
2026	191.584
2027	197.400
2028	203.250
2029	209.533