Year	2015 = 100
1980	47.1489125568
1981	40.486953353
1982	53.5806063524
1983	66.8860952551
1984	81.521615363
1985	73.8675683858
1986	57.6375846179
1987	33.3868272472
1988	36.6720436675
1989	38.8978735685
1990	44.5370982035
1991	42.9411849984
1992	39.3722782853
1993	38.7241391494
1994	37.5875143144
1995	49.4658546685
1996	58.109090284
1997	58.5901213564
1998	52.0896792699
1999	54.6259119005
2000	56.3963878184
2001	53.6319605084
2002	50.0081793937
2003	51.7165333482
2004	57.618119743
2005	74.4324641015
2006	105.5520468449
2007	108.469708329
2008	101.0092748321
2009	78.3817642925
2010	88.830885392
2011	98.3887633775
2012	117.0050587825
2013	95.8237475477
2014	98.2369787033
2015	100
2016	107.0222666119
2017	100.5114708536
2018	92.755336827
2019	91.9649383499
2020	71.4829133363
2021	72.5106176619