Year	2015 = 100
1980	47.9382772998
1981	72.6336650355
1982	38.769587844
1983	36.0059738288
1984	32.0872206012
1985	30.431861604
1986	35.729046895
1987	35.4789369987
1988	31.0196472189
1989	29.0669292628
1990	37.6952645889
1991	90.3022599682
1992	118.0246888679
1993	113.2545404227
1994	81.0861389801
1995	79.9529333205
1996	57.3247446603
1997	57.3247446603
1998	54.3076528331
1999	57.3247446603
2000	78.4443874265
2001	61.850382397
2002	58.8332905699
2003	67.8906002289
2004	85.9871169747
2005	125.209310688
2006	111.6323974856
2007	89.5352169417
2008	98.7448898012
2009	76.64921779
2010	68.9631763705
2011	84.7063615014
2012	94.9765420767
2013	104.0370755254
2014	148.8777006204
2015	100
2016	91.9549245967
2017	31.4622335435
2018	38.9823349139
2019	56.8435185131
2020	33.4897192457
2021	28.8796029439