Year	2015 = 100
1980	6.4168739635
1981	8.1126571283
1982	5.716025271
1983	4.7527208252
1984	6.0707997125
1985	6.771648405
1986	5.2491150376
1987	6.2979713576
1988	6.6314786671
1989	6.4671417313
1990	7.628133843
1991	6.511609373
1992	9.6090222549
1993	7.0693882632
1994	7.0283040307
1995	7.0943451545
1996	9.8586267827
1997	12.5504185069
1998	10.047100529
1999	15.0247405166
2000	14.6912869698
2001	15.3630267328
2002	18.1708023009
2003	26.482977828
2004	28.1840742186
2005	40.3672105395
2006	42.4191580605
2007	66.0189708207
2008	101.3988760498
2009	109.5075965861
2010	80.5453190937
2011	97.7569833303
2012	114.615718398
2013	127.2487127388
2014	138.1187373495
2015	100
2016	63.0202610874
2017	69.8959386321
2018	76.3456262388
2019	68.2712707677
2020	46.1187527342
2021	57.0004923535