Year	base year varies by country
1960	14.907977075878817
1961	13.751329360902925
1962	13.598559534626508
1963	15.88823419554358
1964	16.0672510637581
1965	16.493419570020876
1966	16.266215966260503
1967	15.888337832006656
1968	15.367090002446007
1969	16.12099437471631
1970	16.038868016713774
1971	15.963701225856394
1972	16.01859131875107
1973	18.88177350835141
1974	21.281502590111646
1975	20.626547684319796
1976	23.25151542041517
1977	24.847760078983093
1978	27.292874311474403
1979	30.58425212520517
1980	32.68694353900888
1981	33.033431393219395
1982	33.87877531265451
1983	35.881142117152315
1984	37.60084776260068
1985	36.99700740137607
1986	33.77185992658542
1987	36.36105209318086
1988	37.67733172383909
1989	39.358382568401986
1990	40.85707695427438
1991	42.32168005864566
1992	43.343428033696455
1993	45.07151807426533
1994	46.846134510519875
1995	48.54825112169721
1996	50.33477985796322
1997	52.0876128542795
1998	56.51439322458853
1999	56.54008061033687
2000	61.54682735636593
2001	60.573234150864266
2002	62.46849989707995
2003	64.52929377787738
2004	68.40704141033818
2005	74.4696746073613
2006	77.43426147096737
2007	81.21407816268652
2008	89.65132785320434
2009	84.27923959094888
2010	90.40368208628087
2011	95.29669828924864
2012	96.24960075958401
2013	96.41753175128326
2014	98.79660232087465
2015	100
2016	101.65825996642414
2017	105.49988590595432
2018	106.15891697492663
2019	106.23516764394894
2020	105.3661557615109
2021	111.37994563739933
2022	118.55922199755457
2023	116.34817617460781