Year	base year varies by country
1982	0.02818375204527903
1983	0.041132633918787555
1984	0.05152965148596038
1985	0.11353834544025167
1986	0.2694047796897719
1987	0.7569951339352742
1988	2.1950975065339837
1989	4.72926582105292
1990	6.82811823328037
1991	8.604749306620375
1992	12.48274022721126
1993	16.2446476030413
1994	17.357161896448645
1995	18.984645357106068
1996	19.85271471259608
1997	20.467209541299383
1998	22.265398572285285
1999	22.240209604291106
2000	24.712721734906236
2001	25.83331412437711
2002	25.01451267938132
2003	26.96733086489812
2004	31.170877042665126
2005	30.62813431627119
2006	31.364930906989123
2007	33.6612350697103
2008	35.80352915894916
2009	66.36301394585111
2010	70.1043029434793
2011	76.68825756102504
2012	79.63113540014109
2013	82.48742923522346
2014	86.69949087552318
2015	91.19733896543478
2016	95.5574840065791
2017	100
2018	104.44338527166425
2019	107.5766991711758
2020	110.50438230179851
2021	113.31685065890053
2022	118.89463096286104
2023	128.35715735332732