Year	base year varies by country
1990	99.9990520485947
1991	111.992519470433
1992	126.743888939405
1993	147.499351415081
1994	178.156154153412
1995	259.650734400768
1996	355.124537666365
1997	402.322338392264
1998	368.756779820552
1999	492.146136928543
2000	607.042829597024
2001	623.725583394202
2002	678.063810765236
2003	751.920845700501
2004	858.041840714071
2005	1017.06576867612
2006	1155.27124854056
2007	1281.06044497028
2008	1542.11169157308
2009	1407.86670480708
2010	1740.35261704197
2011	2055.59428896985
2012	2176.73372722095
2013	2377.1882012351
2014	2547.47389940982
2015	3731.44426880556
2016	3736.45973455039
2017	4429.70626363653
2018	5087.67998216372