Year	base year varies by country
1982	0.026937994618603203
1983	0.037593977025297855
1984	0.04643682264319852
1985	0.10243938330940096
1986	0.24719449937759996
1987	0.7052955616420362
1988	2.0251092331392138
1989	4.474451094308894
1990	6.689286432854126
1991	8.740732673339174
1992	12.921199314699786
1993	16.000268195627203
1994	16.813096407325247
1995	17.300716594112842
1996	18.759629156947195
1997	18.97125304812192
1998	21.578390428950094
1999	21.717783947110345
2000	25.11075057379708
2001	26.78069290684893
2002	26.570200638489982
2003	28.724219414497348
2004	32.896644426869244
2005	32.38502202049076
2006	33.21241660465663
2007	35.39897224111177
2008	38.14015482808626
2009	69.4731169678446
2010	72.7555655018311
2011	80.31109879751283
2012	82.26842791931902
2013	85.9004230665916
2014	86.32453128840197
2015	93.25350199307346
2016	94.85892120048351
2017	100
2018	102.83866635211598
2019	104.9586923002918
2020	107.79856418567088
2021	109.44793725795941
2022	113.01775958876262
2023	121.39960097969484