Year	2015 = 100
1980	21.0991052371
1981	22.5072194081
1982	26.7573988741
1983	23.8184449947
1984	22.2714571726
1985	19.3938660573
1986	18.4637355943
1987	17.74676003
1988	19.8460128099
1989	20.3498334757
1990	12.8280492873
1991	15.376219199
1992	23.4373498757
1993	22.7300631647
1994	21.6287628605
1995	25.1587371459
1996	27.0416054133
1997	26.6314437204
1998	27.8360918368
1999	24.6000129486
2000	23.1143879045
2001	25.4138771112
2002	29.0698065503
2003	35.483831202
2004	40.7917111113
2005	51.0317918818
2006	55.6867169837
2007	68.992733829
2008	80.2224314375
2009	64.2438429617
2010	73.2306827234
2011	81.0311540357
2012	88.0365220476
2013	94.62343467
2014	100.1871737719
2015	100
2016	99.5529953134
2017	108.4286055663
2018	115.8254936098
2019	108.4314320862
2020	89.583237425
2021	102.9884900005