Year	base year varies by country
2009	72.8018938491226
2010	73.6236518001258
2011	73.8408532628593
2012	76.7007807726215
2013	78.5559240724069
2014	94.143602479329
2015	97.9166758294011
2016	97.6025154507527
2017	100.09705768955
2018	100
2019	100.759240923004
2020	102.082896592562
2021	106.823318701786
2022	110.520298697648
2023	112.871794414619