Year	Index (Units)
2004	84.404
2005	86.002
2006	91.492
2007	72.230
2008	57.725
2009	88.083
2010	79.473
2011	85.614
2012	100.634
2013	91.384
2014	91.775
2015	84.259
2016	106.378
2017	122.253
2018	144.836
2019	137.988
2020	143.964
2021	169.995
2022	148.832
2023	159.520
2024	169.503
2025	171.746
2026	176.408
2027	179.841
2028	183.275
2029	186.993