Year	Index
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
2008	130.175
2009	104.763
2010	122.14
2011	152.296
2012	156.362
2013	156.345
2014	155.207
2015	114.644
2016	98.038
2017	113.358
2018	131.654
2019	127.61
2020	129.379
2021	132.878
2022	136.737
2023	141.105
2024	145.967