Year	base year varies by country
1990	0.034644946848263886
1991	0.1022039715838234
1992	0.30646770046035027
1993	1.0030955559496486
1994	2.3976297987779907
1995	3.4509918438769223
1996	4.969507072831729
1997	11.695158406859665
1998	17.324566741880215
1999	25.90411889700361
2000	37.089721858386625
2001	51.16761367103526
2002	62.78996310656952
2003	77.32788367471598
2004	89.2801421545018
2005	100
2006	110.60657935710172
2007	128.10036754770988
2008	148.61638425031586
2009	154.6900062908127
2010	163.8326502630758
2011	170.3481819524194
2012	176.82668205142946
2013	179.28401966778677
2014	182.3502502394982
2015	188.30353782859268
2016	193.2395136256451
2017	202.228955115994
2018	214.7919691076801
2019	229.40926060748262
2020	238.83641018821135
2021	251.84224894875982
2022	285.08809512475074
2023	319.76943253357337