Year	base year varies by country
1990	51.7711694454921
1991	52.7037725448562
1992	54.1859195648216
1993	56.99044846031
1994	57.9561691967482
1995	59.7145574114919
1996	61.083365774499
1997	63.4834900294921
1998	67.6434240113845
1999	70.6036310619576
2000	75.4575955975362
2001	80.633749764657
2002	84.8161445640728
2003	88.1339232076976
2004	88.5881096929318
2005	91.310609379154
2006	94.4333387916694
2007	95.5651110829862
2008	95.0829605925381
2009	90.685755750995
2010	88.0650858644535
2011	89.253716316449
2012	91.1354282964343
2013	92.1682299122119
2014	92.335982904242
2015	100
2016	100.583849082632
2017	101.842236990149
2018	102.982902874573
2019	106.438403063977
2020	105.124907795704
2021	105.626860887635
2022	112.579500025195
2023	115.917729539753