Year	base year varies by country
1995	2.58214305384694
1996	4.77780848003129
1997	5.77439870799498
1998	7.18415758959249
1999	9.18824289960123
2000	16.6300448995399
2001	31.0692826069036
2002	37.1306588098123
2003	41.767291018611
2004	45.1602020834407
2005	51.7842987564023
2006	58.1826333223488
2007	63.2456153805591
2008	68.9916090992281
2009	74.4334553480551
2010	78.6977045587988
2011	85.7089599755173
2012	91.0223489200087
2013	95.6876477821721
2014	98.1615399005552
2015	100
2016	101.549888832477
2017	104.566725993871
2018	106.631858771373
2019	109.234316351619
2020	111.90882697618
2021	118.368681577879
2022	130.619930874927
2023	146.297896169843