Year	Index (Units)
1990	39.354
1991	41.569
1992	45.785
1993	50.076
1994	52.143
1995	55.555
1996	58.156
1997	60.846
1998	65.732
1999	68.411
2000	70.637
2001	73.967
2002	76.849
2003	80.808
2004	89.186
2005	100.000
2006	106.241
2007	113.948
2008	122.438
2009	125.054
2010	132.885
2011	140.441
2012	147.326
2013	153.413
2014	159.200
2015	159.974
2016	162.329
2017	166.012
2018	171.081
2019	175.026
2020	179.195
2021	185.572
2022	203.300
2023	213.361
2024	219.303
2025	228.075
2026	237.198
2027	246.686
2028	256.553
2029	266.815
