Year	2000 = 100
1980	85.8207466
1981	91.85950668
1982	87.73315132
1983	51.41777362
1984	60.69516024
1985	69.44016119
1986	69.01544245
1987	71.77789057
1988	85.31800836
1989	51.75058645
1990	47.12653426
1991	70.8798654
1992	86.75754025
1993	77.16647135
1994	56.10337139
1995	69.66411434
1996	55.90711271
1997	87.47026089
1998	95.65067006
1999	86.74520447
2000	100
2001	112.6031391
2002	79.26554535
2003	57.72989401
2004	111.3115998
2005	166.7633711
2006	240.3137633
2007	342.716662
2008	416.3423775
2009	314.0155278
2010	312.5036885
2011	419.2357908
2012	452.8124158
2013	426.5042934
2014	375.4804267
2015	282.6757035
2016	133.7262788
2017	88.44338702
2018	88.48440661