Year	base year varies by country
2006	25.596443013087434
2007	29.270368665133894
2008	34.840365904696604
2009	42.92698088433399
2010	51.63473542010236
2011	57.5386372210295
2012	64.19979469835002
2013	99.9997559462854
2014	126.8724481890995
2015	148.57425004182429
2016	168.63923148327777
2017	189.70351010934664
2018	207.19124401268334
2019	225.11821364092364
2020	246.0842056093244
2021	268.09678717192855
2022	336.5797304659701
2023	450.5556387018821