Year	2015 = 100
1980	2.0850572968
1981	2.2003253529
1982	2.4137823347
1983	1.580220161
1984	1.4105573231
1985	1.6694631531
1986	1.7976706541
1987	1.5865817133
1988	1.439424036
1989	1.1280880209
1990	1.594276386
1991	3.8142477101
1992	3.8462835056
1993	4.8085618705
1994	5.2069014726
1995	7.9039508196
1996	8.0431267805
1997	12.0656081385
1998	15.7878839901
1999	13.6221876079
2000	14.0413145309
2001	16.8744632801
2002	13.7626664919
2003	12.2576709633
2004	12.8748423152
2005	11.3006733739
2006	15.032247363
2007	19.2276622627
2008	25.207016836
2009	25.7482632591
2010	28.1885212422
2011	53.4137790095
2012	54.4941990206
2013	71.3202764503
2014	97.4747994497
2015	100
2016	93.0092211354
2017	114.0259755602
2018	114.5015427797
2019	110.08344635
2020	106.2895689
2021	84.8209367927