Year	base year varies by country
2010	100
2011	103.57065229958147
2012	106.58337541748182
2013	110.04836195313715
2014	112.77186308847294
2015	115.47350050518968
2016	117.79436228715532
2017	120.46816149372385
2018	121.43613222618816
2019	122.356876178179