Year	Index
1997	26.464
1998	26.64
1999	26.158
2000	25.966
2001	25.565
2002	36.035
2003	37.352
2004	39.631
2005	44.516
2006	48.897
2007	53.038
2008	56.876
2009	61.253
2010	67.944
2011	74.404
2012	82.471
2013	91.498
2014	113.38
2016	187.331
2017	233.781
2018	345.167
2019	450.443
2020	545.936
2021	634.924
2022	699.051
2023	747.985
2024	785.384