Year	base year varies by country
1960	0.9876906916129743
1961	1.0184642617310549
1962	1.0869833170430088
1963	1.1838299703092592
1964	1.238066581323522
1965	1.2862252876883622
1966	1.3552631020737889
1967	1.3839999064038335
1968	1.4724707771166066
1969	1.5595100822764738
1970	1.7981491733813835
1971	2.059218257315306
1972	2.1946495824556913
1973	2.5701067089312706
1974	3.4154221086297745
1975	3.7391905974517825
1976	4.052641324979786
1977	4.3917179080277275
1978	4.802613760543846
1979	5.520170726201072
1980	6.305944535111027
1981	7.047822955232914
1982	7.6570021014456
1983	8.747988435956772
1984	13.380875060649958
1985	15.663788127211204
1986	16.116774915822273
1987	17.325069814789067
1988	19.015989545982826
1989	20.746433460855833
1990	23.43451530870095
1991	27.27663213147229
1992	29.426539128294444
1993	31.43037520666072
1994	34.592343402858454
1995	37.235995396261494
1996	40.099058227841844
1997	42.60918539271329
1998	47.042956768364206
1999	50.02295859809387
2000	52.93276086417753
2001	55.90697979060118
2002	58.27245543581972
2003	60.132588742251784
2004	63.674854345342915
2005	67.43860713877243
2006	70.88578998695742
2007	73.1288217772292
2008	78.37889798481308
2009	80.52511487315081
2010	84.04477452483845
2011	87.33832600763454
2012	89.08000603189336
2013	90.91600138877125
2014	93.69171719499714
2015	93.01743403132011
2016	94.20834715783823
2017	96.39422570348522
2018	100
2019	100.69707630104534
2020	102.35907166245124
2021	104.69539542525712
2022	110.4417573638633
2023	115.51819624320161