Year	2015 = 100
1980	21.6398756495
1981	19.0211220584
1982	16.251365009
1983	10.1402705093
1984	12.4090200852
1985	19.6461981855
1986	21.1414833099
1987	24.1122425644
1988	22.8411129542
1989	14.9874471456
1990	21.1586386527
1991	11.0479161134
1992	9.3205585899
1993	10.0814590487
1994	8.9852147826
1995	11.8030297526
1996	14.9671937906
1997	14.0994572876
1998	21.5601669416
1999	16.1138034639
2000	17.5781320879
2001	21.9358223118
2002	22.1952009574
2003	29.7588321322
2004	36.5808520217
2005	39.9987493159
2006	44.5687712641
2007	53.9242056731
2008	59.2180829191
2009	50.6451788217
2010	63.5953161235
2011	75.1445539055
2012	93.2581097093
2013	109.5963124398
2014	106.0982148476
2015	100
2016	96.9831421468
2017	98.1146331324
2018	108.0740298533
2019	83.9122306498
2020	61.4767536775
2021	69.6482797615