Year	Index (Units)
1998	47.734
1999	82.084
2000	117.701
2001	92.209
2002	101.638
2003	45.166
2004	52.271
2005	71.012
2006	87.383
2007	100.000
2008	130.175
2009	104.763
2010	122.140
2011	152.296
2012	156.362
2013	156.345
2014	155.207
2015	114.588
2016	95.108
2017	113.025
2018	127.503
2019	123.869
2020	110.685
2021	150.943
2022	178.691
2023	161.378
2024	164.342
2025	163.633
2026	165.238
2027	167.938
2028	171.524
2029	175.757