Year	Index (Units)
1997	26.464
1998	26.640
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	113.380
2016	187.331
2017	233.781
2018	345.167
2019	530.979
2020	722.878
2021	1091.123
2022	2125.434
2023	6618.763
2024	16508.926
2025	23937.893
2026	29922.339
2027	33513.030
2028	36864.330
2029	39813.485