Year	base year varies by country
2010	68.00141985517106
2011	76.78100300901525
2012	84.47841364050707
2013	88.9424701301927
2014	95.92151856291706
2015	99.99999998706289
2016	99.8920521242923
2017	104.8943140669016
2018	113.26807929585544
2019	121.06900079049139
2020	124.78975524020504
2021	132.88275616989787
2022	155.79534782469946
2023	169.9224221159168